At least seven bombs explode in Central London on January 29, 1977. One person is injured. The Irish Republican Army (IRA) later claims responsibility.

Hundreds of police seal off the Oxford Street area as Selfridges department store is set ablaze and one man is injured. The explosions occur over a two-mile area within 50 minutes. The bombs wreck buildings in Oxford Street, Regent Street, and Wardour Street, causing hundreds of thousands of pounds worth of damage and burying a taxi under the rubble, injuring the driver. Another man is trapped in a basement in Selfridges after the blast.

The attacks come less than 72 hours before the IRA commemoration of the Bloody Sunday massacre in Londonderry and, according to the police, bear all the hallmarks of the IRA. The bombs, left in doorways of shops and offices, are similar to those used in fire bomb attacks on the centre of Belfast and Londonderry over the previous four years.

Hundreds of police are drafted into the Oxford Street area within minutes of the first blast, shortly after midnight. Police using sniffer dogs examine hundreds of cars stretched along Oxford Street and residents are warned to evacuate by police and fire officers using bullhorns. Dozens of fire engines respond to the resulting blaze in the huge department store.

A two-mile area around Oxford Street is cordoned off by police road-blocks shortly after the first explosions. Scotland Yard and the Fire Brigade are unable to keep pace with the bombs and fires as news reports flood in.

The first explosions occur in Wardour Street where two bombs blow out the front of a publishing office and a travel agency, hurling glass and furniture into the street. Within 20 minutes, three other bombs explode in Oxford Street, Regent Street, Poland Street and in the side-streets of Soho. The fire brigade simultaneously fights two major fires within a mile of each other, in Selfridges and in a building in Berwick Street, Soho. Debris from the bombs is littered around as bomb squad officers and police patrols begin examining all suspicious cars and packages in the area. Several bomb squad officers are standing within yards of a building when the fourth bomb, fortunately a small one, goes off.

The Assistant Commissioner for Crime, Jock Wilson, joins Bomb Squad officers in a special mobile control unit. A senior police officer says that many of the bombs are crammed through letter-boxes in the business premises. However, the bomb at Selfridges is placed in the basement, police believe, on previous afternoon.

(Pictured: Police cordon off Regent Street following IRA bombs in the West End, London, January 1977. Photograph: ANL/REX/Shutterstock)