Gunmen attacked a camp for a construction company in rural northern Nigeria, killing a guard and kidnapping seven foreign workers from Britain, Greece, Italy and Lebanon, authorities said Sunday, in the biggest kidnapping yet in a region under attack by Islamic extremists.

The attack on Saturday night happened in Jama’re, a town in a rural portion of Bauchi state. There, the gunmen first attacked a local prison, burning two police trucks, Bauchi state police spokesman Hassan Muhammed told The Associated Press.

The gunmen then targeted a worker’s camp for a construction company called Setraco, which is in the area building a road, Muhammed said. The gunmen shot dead a guard at the camp before kidnapping the foreign workers, the spokesman said.

Adamu Aliyu, the chairman of the local government area that encompasses Jama’re, identified those kidnapped as one British citizen, one Greek, one Italian and four Lebanese.

The Italian news agency ANSA later said authorities confirmed an Italian had been kidnapped in the attack. It quoted Foreign Minister Giulio Terzi saying the safety of the hostage must be given “absolute priority.”

The Foreign Office of both Britain and Greece said Sunday they were looking into the kidnappings.

More In: International | News