An explosion occurred at a power plant in central Iran's Isfahan province on Sunday but there were no casualties, the country's official Irna news agency reported.
The 5am blast was caused by wear and tear of a transformer at the power station in the city of Islamabad, Said Mohseni, the managing director of the Isfahan power company, told Irna.
There have been several explosions and fires at Iranian military, nuclear and industrial facilities since late June.
The plant returned to normal after about two hours and Isfahan's power supply was uninterrupted, Mr Mohseni added.
Sunday's incident is the latest in a string of fires and explosions at military and civilian sites across Iran in recent weeks.
Two explosions rocked Tehran in late June, one near a military site and the other at a health centre, the latter killing 19 people.
Fires or blasts also hit a shipyard in southern Iran last week, a factory south of Tehran – leaving two dead – and the Natanz nuclear complex in central Iran earlier this month.
The Iranian authorities called the Natanz fire an accident but did not elaborate. They later said they would not reveal its cause, citing security reasons.
Iran's string of fires and explosions prompted speculation that Israel, the country's arch-enemy, may be behind a campaign of sabotage
Israel accuses Iran of seeking to acquire a nuclear bomb. Tehran insists its nuclear programme is entirely peaceful.
Match info:
Real Betis v Sevilla, 10.45pm (UAE)
World%20Food%20Day%20
%3Cp%3ECelebrated%20on%20October%2016%2C%20to%20coincide%20with%20the%20founding%20date%20of%20the%20United%20Nations%20Food%20and%20Agriculture%20Organisation%2C%20World%20Food%20Day%20aims%20to%20tackle%20issues%20such%20as%20hunger%2C%20food%20security%2C%20food%20waste%20and%20the%20environmental%20impact%20of%20food%20production.%20%0D%3C%2Fp%3E%0A
How Alia's experiment will help humans get to Mars
Alia’s winning experiment examined how genes might change under the stresses caused by being in space, such as cosmic radiation and microgravity.
Her samples were placed in a machine on board the International Space Station. called a miniPCR thermal cycler, which can copy DNA multiple times.
After the samples were examined on return to Earth, scientists were able to successfully detect changes caused by being in space in the way DNA transmits instructions through proteins and other molecules in living organisms.
Although Alia’s samples were taken from nematode worms, the results have much bigger long term applications, especially for human space flight and long term missions, such as to Mars.
It also means that the first DNA experiments using human genomes can now be carried out on the ISS.
U19 World Cup in South Africa
Group A: India, Japan, New Zealand, Sri Lanka
Group B: Australia, England, Nigeria, West Indies
Group C: Bangladesh, Pakistan, Scotland, Zimbabwe
Group D: Afghanistan, Canada, South Africa, UAE
UAE fixtures
Saturday, January 18, v Canada
Wednesday, January 22, v Afghanistan
Saturday, January 25, v South Africa
UAE squad
Aryan Lakra (captain), Vriitya Aravind, Deshan Chethyia, Mohammed Farazuddin, Jonathan Figy, Osama Hassan, Karthik Meiyappan, Rishabh Mukherjee, Ali Naseer, Wasi Shah, Alishan Sharafu, Sanchit Sharma, Kai Smith, Akasha Tahir, Ansh Tandon
