Two people have been injured in a bomb explosion at a police barracks in Milan in northern Italy, according to BBC.
One of those injured was the attacker who threw the device, according to the Italian news agency, Ansa.
The man was reported to be foreign, possibly from North Africa, though his nationality was not clear. He was said to be "in a serious condition".
The other casualty was a military policeman lightly hurt by glass shards after the blast, Ansa said.
He was well enough to brief investigators on the circumstances of the attack, Ansa said.
It was reported the attacker may have lost a hand in the explosion.
Television channel Sky TG-24 described the bomb as "rudimentary and fairly weak".
The motives for the attack were unclear.