Sudanese authorities closed two of the Nile bridges in the capital Khartoum on Tuesday and brought in shipping containers to seal off other bridges in anticipation of mass rallies planned on Wednesday demanding an end to military rule
Security has also been shored up around some of the meeting points announced by organisers of pro-democracy groups, witnesses said.
These include the Republican Palace in central Khartoum, the nearby army headquarters, the parliament in the sister city of Omdurman, and the barracks of the armoured corps south-west of the city.
The rallies planned on Wednesday will be the latest in near-daily protests against military rule since army chief Gen Abdel Fattah Al Burhan seized power last October, a move that derailed the country's democratic transition and led to an economic crisis.
Since then, security forces have dealt violently with the rallies, killing more than 90 protesters and injuring about 3,000.
“We will take to the streets on April 6 for the sake of the change we dream of,” said the Sudanese Professionals Association, a key pro-democracy group. “We will be out on the glorious day of April 6 with our heads held high and the bravery of our people known to all.”
The resistance committees, a grass roots movement that has led protests since the October takeover, also called on their supporters to come out on Wednesday, ensuring a sizeable turnout.
The witnesses said the key bridges of Maknimir and Kobar have been sealed off since Monday night.
Security forces have also ferried shipping containers to the city’s other Nile bridges and placed them close to their entrances.
The rallies mark an uprising in 1985 that toppled the 16-year rule of military dictator Jaafar Al Nimeiri and also the start of a sit-in outside the army headquarters in 2019 calling for the removal of long-time dictator Omar Al Bashir.
While army generals removed Al Bashir on April 11 that year, the protests continued, demanding that the military hand over power to civilians.
On June 3, security forces violently broke up the rally, killing more than 100 protesters and throwing some of the bodies in the Nile.
Two months later, the pro-democracy movement and the military reached a transitional, power-sharing deal, which Gen Al Burhan discarded when he seized power just weeks before he was to hand over his de facto head of state position to a civilian.
An investigation into the break-up of the sit-in has yet to publish its findings more than two years after it began its work.
Also, little is known about the fate of investigations ordered by Gen Al Burhan to look into the killing of protesters since his takeover and alleged sexual assault by security forces of female protesters.
In Khartoum on Tuesday, security had been stepped up across the city amid widespread speculation that internet and telephone services would be severed by authorities on Wednesday to deny organisers the chance to coordinate.
Gen Al Burhan last week threatened to expel the UN special representative in Sudan, accusing him of overstepping his mandate.
He has said he will only hand over power to an elected government, suggested that the pro-democracy movement was a tool in the hands of Sudan’s foreign “enemies”, and equated with treason any opposition to military rule.
His second-in-command, paramilitary commander Gen Mohamed Hamdan Dagalo, has accused antimilitary activists of being agents on the payroll of foreign embassies.
Meanwhile, most Sudanese are unable to make ends meet in the face of rising prices of essential food items and fuel.
The value of the pound has plummeted against the US dollar and power outages have become more frequent at a time of year when the temperature routinely hovers around 40°C.
What is graphene?
Graphene is a single layer of carbon atoms arranged like honeycomb.
It was discovered in 2004, when Russian-born Manchester scientists Andrei Geim and Kostya Novoselov were "playing about" with sticky tape and graphite - the material used as "lead" in pencils.
Placing the tape on the graphite and peeling it, they managed to rip off thin flakes of carbon. In the beginning they got flakes consisting of many layers of graphene. But as they repeated the process many times, the flakes got thinner.
By separating the graphite fragments repeatedly, they managed to create flakes that were just one atom thick. Their experiment had led to graphene being isolated for the very first time.
At the time, many believed it was impossible for such thin crystalline materials to be stable. But examined under a microscope, the material remained stable, and when tested was found to have incredible properties.
It is many times times stronger than steel, yet incredibly lightweight and flexible. It is electrically and thermally conductive but also transparent. The world's first 2D material, it is one million times thinner than the diameter of a single human hair.
But the 'sticky tape' method would not work on an industrial scale. Since then, scientists have been working on manufacturing graphene, to make use of its incredible properties.
In 2010, Geim and Novoselov were awarded the Nobel Prize for Physics. Their discovery meant physicists could study a new class of two-dimensional materials with unique properties.
F1 The Movie
Starring: Brad Pitt, Damson Idris, Kerry Condon, Javier Bardem
Director: Joseph Kosinski
Rating: 4/5
THE SIXTH SENSE
Starring: Bruce Willis, Toni Collette, Hayley Joel Osment
Director: M. Night Shyamalan
Rating: 5/5
UAE v Gibraltar
What: International friendly
When: 7pm kick off
Where: Rugby Park, Dubai Sports City
Admission: Free
Online: The match will be broadcast live on Dubai Exiles’ Facebook page
UAE squad: Lucas Waddington (Dubai Exiles), Gio Fourie (Exiles), Craig Nutt (Abu Dhabi Harlequins), Phil Brady (Harlequins), Daniel Perry (Dubai Hurricanes), Esekaia Dranibota (Harlequins), Matt Mills (Exiles), Jaen Botes (Exiles), Kristian Stinson (Exiles), Murray Reason (Abu Dhabi Saracens), Dave Knight (Hurricanes), Ross Samson (Jebel Ali Dragons), DuRandt Gerber (Exiles), Saki Naisau (Dragons), Andrew Powell (Hurricanes), Emosi Vacanau (Harlequins), Niko Volavola (Dragons), Matt Richards (Dragons), Luke Stevenson (Harlequins), Josh Ives (Dubai Sports City Eagles), Sean Stevens (Saracens), Thinus Steyn (Exiles)
Other must-tries
Tomato and walnut salad
A lesson in simple, seasonal eating. Wedges of tomato, chunks of cucumber, thinly sliced red onion, coriander or parsley leaves, and perhaps some fresh dill are drizzled with a crushed walnut and garlic dressing. Do consider yourself warned: if you eat this salad in Georgia during the summer months, the tomatoes will be so ripe and flavourful that every tomato you eat from that day forth will taste lacklustre in comparison.
Badrijani nigvzit
A delicious vegetarian snack or starter. It consists of thinly sliced, fried then cooled aubergine smothered with a thick and creamy walnut sauce and folded or rolled. Take note, even though it seems like you should be able to pick these morsels up with your hands, they’re not as durable as they look. A knife and fork is the way to go.
Pkhali
This healthy little dish (a nice antidote to the khachapuri) is usually made with steamed then chopped cabbage, spinach, beetroot or green beans, combined with walnuts, garlic and herbs to make a vegetable pâté or paste. The mix is then often formed into rounds, chilled in the fridge and topped with pomegranate seeds before being served.
Avatar: Fire and Ash
Director: James Cameron
Starring: Sam Worthington, Sigourney Weaver, Zoe Saldana
Rating: 4.5/5