Deadliest metro accidents around the world since 1975

Here are some of the worst accidents on metros over the past four decades:

- July 15, 2014 - RUSSIA:

At least 22 people die and more than 200 are injured after a train derails on Moscow's packed metro during the rush hour.

- June 22, 2009 - UNITED STATES:

A head-on collision between two subway trains in Washington leaves nine people dead and more than 70 injured.

- July 3, 2006 - SPAIN:

In the eastern city of Valencia, a metro train traveling at twice the speed limit of 40 kilometers (25 miles) an hour derails, leaving 43 dead and 39 injured.

- February 18, 2003 - SOUTH KOREA:

A fire started by a man trying to commit suicide destroys two metro trains, killing 198 and injuring 147 in Daegu, in the southeast.

- October 28, 1995 - AZERBAIJAN:

292 people die and 168 are injured when a fire breaks out on the Baku metro when a train is between two stations.

- November 18, 1987 - BRITAIN:

A fire on a wooden escalator in London's King's Cross underground station kills 31 and injures 150.

- February 4, 1977 - UNITED STATES:

In Chicago, an elevated railway train topples on to the street below after being hit by another train. Eleven are killed and more than 200 injured.

- October 20, 1975 - MEXICO:

In Mexico City, two metro trains ram into each other leaving 23 dead and 55 injured.

- February 28, 1975: BRITAIN:

A driver's error in a tunnel in the London Underground at Moorgate station leaves 43 dead and more than 100 injured.

- AFP