A suspected accomplice in a shooting spree at an oil industry academy in Azerbaijan last week maintained cell-phone contact with the attacker who killed 12 people, authorities alleged Monday.
Nadir Aliyev was arrested after the attack Thursday in the Caspian Sea nation's capital Baku. He is from the same village as Farda Gadyrov, the man officials say fatally shot 12 people and wounded 13 others before killing himself.
Aliyev aided the gunman by positioning himself close to the academy building and relaying information by phone during the attack, police and prosecutors said in a statement.
They also said a relative of Gadyrov was arrested after a search of his apartment turned up a pistol, 12 automatic-rifle cartridges and 5 grams of hashish.
Authorities say Gadyrov, 29, entered the academy and climbed up five floors, shooting everyone he met along the way, then turned his pistol on himself when he saw police approaching.
Authorities in the tightly controlled former Soviet republic have made no statement about a possible motive.