A suicide attacker has killed at least two police officers in the Russian republic of Ingushetia, in the latest in a series of such bombings.

Shortly after the first attack, a car bomb was detonated in the same place in the town of Karabulak, officials said.

Forty were killed by a twin attack on Moscow’s Metro system last week, and another North Caucasus republic, Dagestan, has also been targeted.

The Kremlin blamed Islamists from the North Caucasus for the earlier attacks.

Double suicide bombings kill 35 on Moscow subway. AP reports

Two female suicide bombers blew themselves up on Moscow’s subway system as it was jam-packed with rush-hour passengers Monday, killing at least 35 people and wounding 38, the city’s mayor and other officials said.

Emergency Ministry spokeswoman Svetlana Chumikova said 23 people were killed in an explosion shortly before 8 a.m. at the Lubyanka station in central Moscow. The station is underneath the building that houses the main offices of the Federal Security Service, or FSB, the KGB’s main successor agency.

A second explosion hit the Park Kultury station about 45 minutes later. Chumikova said at least 12 were dead there. The ministry later said 38 people were injured.

Moscow Mayor Yuri Luzhkov said both explosions were believed to have been set off on the trains.

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