MOSCOW — Terrorists struck again in the heart of Russia, with a suicide bomber blowing himself up Monday in Moscow's busiest airport. At least 35 people were killed, including two Britons.
No one claimed responsibility for the blast at Domodedovo Airport, which also wounded 180 people. Islamic militants in the southern Russian region of Chechnya have been blamed for previous attacks in Moscow, including a double suicide bombing on the subway system in March that killed 40 people.
The Interfax news agency said the head of the suspected bomber had been found.
President Dmitry Medvedev called it a terrorist attack and tightened security at Moscow's two other commercial airports and other transportation facilities.
It was the second time in seven years that Domodedovo had been involved in a terrorist attack: In 2004, two female suicide bombers penetrated the lax security there, illegally bought tickets from airport personnel and boarded planes that exploded in flight and killed 90 people.
Large-scale battles in Chechnya ended years ago, after two devastating wars that Russia waged with the republic's separatists, but Islamic militants have continued to carry out suicide bombings and other attacks. Most have been in Chechnya and other predominantly Muslim provinces in the southern Caucasus region, but some have targeted Moscow, including its subways, trains and even a theater.
In Washington, President Barack Obama condemned the "outrageous act of terrorism" and offered assistance. Those comments were echoed by British Prime Minister David Cameron.
Monday's attack was most likely carried out by a suicide bomber, and "attempts were being made to identify him," Investigative Committee spokesman Vladimir Markin said, adding that the attacker appeared to have been wearing the explosives on a belt.
The blast came at 4:32 p.m., when hundreds of passengers and workers were in a loosely guarded part of the terminal. They were sprayed with shrapnel of screws and ball bearings, intended to cause as many casualties as possible.
Witnesses described a scene of horror.
"There was lots of blood," said Yelena Zatserkovnaya, a Lufthansa official. Airport workers turned baggage carts into stretchers to wheel the wounded to ambulances outside, she said.
Amateur video showed a pile of bodies on the floor, with other dead scattered around. Luggage also was strewn around the terminal, and several small fires burned.
Driver Artyom Zhilenkov said he was standing just a few yards away from a man who may have been the suicide bomber. He saw an explosion on or near the man, whose suitcase was on fire.
The Emergencies Ministry said 35 people were killed, 86 were hospitalized with injuries and 94 were given medical treatment.
Among the dead were two British travelers, said Markin, the investigative spokesman.