BEIJING, Sept. 10 (Xinhua) -- The international community has adopted numerous measures against terrorism since the Sept. 11, 2001, terrorist attacks. But five years on, terrorism remains a grave threat to the security of mankind.

    The following are a list of major terror attacks that have happened in many parts of the world since the Sept. 11, 2001 attacks, in which terrorists hijacked four airliners in the United States and crashed two into the World Trade Center's Twin Towers in New York, one into the Pentagon, and one into a field in Pennsylvania, killing nearly 3,000 people.

    In 2002

    -- On Oct. 12, a series of explosions rocked the Indonesian resort island of Bali, killing 202 people and injuring more than 330 others. Many foreign tourists were among the dead.

    -- On Oct. 23, a gang of Chechen guerrillas took more than 800 people as hostages in a Moscow theater, resulting in the deaths of more than 120 people.

    In 2003

    -- On Aug. 29, a car bomb attack at the Imam Ali mosque of Iraq's holy city of Najaf killed more than 100 people, including Iraq's Shiite leader Mohammad Baqer al-Hakim.

    In 2004

    -- On March 2, a total of 271 people were killed and more than 500 wounded as a result of multiple bombings targeted at some Shiite mosques in northern Baghdad and the southern city of Karbala.

    -- On March 11, a series of rush-hour rail bombings in the Spanish capital city of Madrid left at least 198 dead and about 1,800 injured.

    -- On Sept. 1, a group of heavily armed men seized a secondary school in the city of Beslan in Russia's Northern Ossetian republic, leading to the deaths of more than 300 people, nearly half of whom were children.

    In 2005

    -- On July 7 and July 21, several explosions on London underground trains and buses killed 56 people and injured 700 others.

    -- On Sept. 14, four suicide car bombings rocked the Iraqi capital of Baghdad, killing at least 114 people and wounding 156 others.

    In 2006

    -- On July 11, a series of powerful bombs ripped through crowded commuter trains in Mumbai, killing at least 174 people and injuring 464.

    -- On Aug. 10, a terrorist plot to blow up U.S.-bound airliners over the Atlantic was thwarted, and British authorities said afterwards that liquid explosives were detected in six airliners. Enditem