[Updated at 2:25 p.m. ET] The governments of Britain, Germany and the Netherlands are advising their citizens to avoid the Libyan city of Benghazi.
Britain says there is a "specific, imminent threat to Westerners" in Benghazi and is advising its citizens there to leave immediately. The German Foreign Office also cites what it says is a specific threat.
The British Foreign Office also warns against any travel to the area, in a statement on its website.
The U.S. Embassy in Tripoli posted a statement on its website saying it knows of no specific threats to U.S. citizens in Benghazi, but it advises against all travel to the city.
"The potential for violence and kidnappings targeting Westerners in Benghazi is significant," the statement said.
It referred Americans back to a travel warning for Libya issued on January 2.
We'll bring you more details on this story as we get them.