Russian police arrested a suspect in a 1995 rocket-propelled grenade attack on the U.S. Embassy in Moscow and said he was under investigation in an attempted grenade attack last year, officials said.

Sergei Gavryushin, 40, was arrested Tuesday by police who found what they termed extremist-nationalist literature at his apartment, as well as camouflage clothing and explosives manuals, said a spokesman in the press service of the Moscow police. Russian news reports described him as a deputy director of an auto service center.

A Mukha grenade launcher was used to blast a small hole in an upper floor of the embassy building in central Moscow in the Sept. 13, 1995, attack, in which no one was hurt.

An attempted grenade attack occurred March 28, 1999, when a masked attacker got out of a car in front of the embassy and pointed a grenade launcher, which did not go off.

The man exchanged shots with police before driving away. At the time, the street in front of the embassy was the scene of demonstrations against the NATO-led bombing of Yugoslavia.