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British emergency workers on Monday were responding to a collision between an oil tanker and a cargo ship off the eastern coast of the United Kingdom in the North Sea.
At least 32 casualties were "brought ashore in Grimsby," a port town in Lincolnshire, reportedThe Guardian, and the two ships were believed to be a U.S.-flagged tanker called the MV Stena Immaculate and a cargo vessel called the Solong, which was headed for Rotterdam in the Netherlands.
Photos and videos posted on social media showed the vessels on fire and surrounded by thick black smoke.
Martyn Boyers, chief executive of the Port of Gimsby East, told the BBC that a "massive fireball" was seen erupting around the time of the collision.
"They must have sent a mayday out—luckily there was a crew transfer vessel out there already," said Boyers. "Since then there has been a flotilla of ambulances to pick up anyone they can find."
Boyers toldSky News that "a haze and a smog" had been reported off the coast on Monday.
"It's been very foggy, and the fog has never lifted. So I would imagine that at that time, when the accident took place, that there would have been fog," said Boyers. "Having said that all these vessels now... they've got every, every bit of kit that's known to man about how to navigate and radars and everything. So it's a very, very unusual and tragic accident."
His Majesty's Coastguard, the U.K. maritime agency, reported that an alarm was raised about the crash about 10 miles off the coast of East Yorkshire at 9:48 am local time.
The Solong appeared to have struck the oil tanker when it was anchored, according to tracking data.
The BBC reported Monday morning that all members of the Stena Immaculate crew had been accounted for and were safe; it was not clear whether there were still people in the Solong's crew who still needed to be located.
Climate campaigners have warned against continued oil extraction in the North Sea; in January, advocates celebrated as grassroots campaigners and groups won a lawsuit stopping two fossil fuel projects by Shell and Equinor from moving forward there.
David Steel, manager of the Isle of May National Nature Reserve, noted that the disaster happened just as seabirds' breeding season is about to begin.
"Seabirds pouring back into the North Sea as they head to colonies down east coast," said Steel, "and this is a breaking headline we didn't need today."