The British government has urged travel agents not to sell tours to Burma, saying tourist travel provides support for its military rulers.
Britain has in place an arms embargo, a partial asset freeze and a ban on visits by senior officials against Burma, but it has no policy formally banning trade or travel.
Instead, it has urged companies to volunteer to boycott the country.
Foreign Office Minister Mr Mike O'Brien said he had written to the head of the Association of British Travel Agents (ABTA) to urge a tourism boycott "in the light of the recent dreadful developments" in Burma.
A spokeswoman for ABTA said the number of British tourists going to Burma was very small. "There's very little demand anyway," she said."Burma has so far resisted pressure to release Nobel Peace Prize laureate Aung San Suu Kyi, who was arrested on May 30th following clashes between her supporters and pro-government groups while she was on tour outside the capital, Rangoon.
Earlier this month, British oil firm Premier Oil transferred its stake in a Burmese gas project to US and Malaysian firms after Prime Minister Mr Tony Blair called on British companies to halt trade with Burma.
British American Tobacco has also said it is reviewing its presence in the country, where it has about 500 employees.