Britain is relaxing restrictions on carry-on baggage on Friday, allowing musical instruments and essential liquids to be carried aboard aircraft, the government announced.

Severe limits on carry-on baggage were imposed after police announced on Aug. 10 that they had broken up an alleged plot to bring down U.S.-bound aircraft with liquid-based explosives.

The Department for Transport said Thursday that one carry-on bag would be allowed, with a new larger maximum size of 56cm x 45cm x 25cm (about 22in x 18in x 10in).

Previously the maximum was 45cm x 35cm x 16cm (about 18in x 14in x 6in).

Musicians with instruments too big to go into hand luggage will be able to take them on board after the instrument has been screened.

"We will never compromise on the safety of passengers, but it is right that we continually strive to strike the right balance between properly robust security and arrangements which minimize the burden on passengers and business," the department said in a statement.

"These adjustments have been made in the light of a detailed assessment of the measures introduced in August and address that twin aim."

CountryWatch: United Kingdom