BAKU: A man was detained in Azerbaijan on Friday in connection with the killing of 12 students and staff at Baku's prestigious Oil Academy by a gunman who then killed himself, the general prosecutor's office said.

"Nadir Aliyev was detained today in Baku as a suspect in this case," a spokesman for the prosecutor said. He said Aliyev was a friend of the attacker from the same region.

The spokesman gave no other details.