Two people have been injured following an explosion at one of the UK's largest steelworks factory.
The explosion happened at Tata Steel in south Wales and is believed to have been caused by a train used to carry molten metal.
The blast happened at 3.30am (gmt) and residents were woken by the explosions.
Large plumes of smoke could be seen at the site in Port Talbot.
Two people suffered minor injuries.
In a statement, the company said: "Two of our employees suffered minor injuries and both have been released following treatment.
"The spillage led to a number of fires which were extinguished by our own emergency services supported by members of the Mid and West Wales Fire and Rescue Service.
"We are currently investigating the cause of the incident and are looking to minimise any impact on production."
It is understood the explosion happened on a railway track outside and was caused by molten metal coming into contact with cold water.
Councillor Sharon Freeguard told the BBC: "I thought I heard about two to three explosions. It was extremely frightening and very, very scary.
"The house just shook, so it was quite alarming. Once it was over, I did wonder what it was and just did think about the works.
"We're just all relieved that there are no fatalities."
The company has launched an investigation into the incident.
Tata Steel acquired the Port Talbot facility in 2007 when it bought Corus for $12 billion.
