(CNN) -- Four Western aid workers in Iraq, including two from Canada and one from Britain, have been kidnapped, according to British and Canadian government officials.Dan McTeague, the parliamentary secretary for Canadians abroad, said the four were kidnapped Saturday, but he would not identify the agency with which they are affiliated.McTeague said the government is working to find out more about the circumstances surrounding the incident. He said the government won't negotiate with kidnappers.The British Foreign Office confirmed that a British citizen, identified as Norman Kember, was one of those abducted.It has been reported, but not confirmed, that the fourth person taken hostage was an American. The U.S. Embassy in Baghdad said it was aware of the report and was investigating it.McTeague said the organization contacted embassy officials in Amman, Jordan, The Associated Press reported."Our ability to provide assistance is limited," McTeague said.Canada does not have an embassy in Iraq. The Canadian government has advised since April 2004 that Canadians, including humanitarian workers, should not to travel to Iraq, AP reported."Under no circumstances are Canadians encouraged to travel to Iraq at this time. The situation remains both dangerous and volatile," McTeague said. "This stands as one of the many reasons why we've discouraged Canadians."Hundreds of foreigners and Iraqis have been seized by insurgents fighting to drive U.S.-led forces out of the country. At least four Canadians have been kidnapped since 2003, including a man who was killed in August, AP reported.Canada has not contributed troops to the coalition forces in Iraq.Copyright 2005 CNN. All rights reserved.This material may not be published, broadcast, rewritten, or redistributed. Associated Press contributed to this report.