KUALA LUMPUR, Malaysia (AP) _ A bomb exploded outside a British cultural office today, injuring four Malaysians, authorities said.

It was not immediately known who planted the bomb and there was no evidence that British personnel were the target of the blast, said Malaysian police and officials with Britain's Foreign Office in London.

The bomb exploded on the second floor of the building of the Petronas state oil company, which houses the British Council language center. The British Council is an official body promoting British culture overseas.

The bomb blew up about 30 feet from the British office, shattering windows. The four people hurt were in the corridor where the blast occurred and three of them were hospitalized, police said.

Malaysia is among the nations that have banned British author Salman Rushdie's book ''The Satanic Verses,'' which many Moslems consider blasphemous. Several demonstrations agains the book have been held in Malaysia but authorities said it was unclear whether today's explosion was aimed at Britain's defense of the Indian-born Rushdie, whom British authorities are protecting because of threats on his life.