"According to the latest information, six people were kidnapped from the Saudi Arabian Trading and Contracting Company (SATCO), in Mansur," said a police official on Monday. 

"One is an American employee and some of the others were Iraqis," he said. The company's lawyer confirmed that "among the six abducted employees were one American, an Asian and three Iraqi guards." The nationality of the sixth was unclear. 

"They stormed the villa with automatic rifles and rocket-propelled grenades," said a police source. "They had no chance." 

The source said one man had been killed in the attack. He was thought to be a security guard at the company where the foreigners worked in Baghdad's Mansur district. 

Fighters have kidnapped scores of foreigners, some of whom have been killed.