Tokyo ? New allegations of sex abuse by a U.S. army serviceman emerged today as the U.S. military pressed forward with tight new restrictions on its troops in Japan following a furor over another rape accusation that surfaced last week.

Japanese officials welcomed the restrictions when they went into effect Wednesday, but said they were not sufficient.

U.S. forces limited some 45,000 troops, civilian employees and their families to bases, workplaces or off-base homes indefinitely to quell the anger over allegations that a 14-year-old Japanese girl was raped by a U.S. serviceman and other military-linked crimes.

The restrictions went beyond a midnight curfew already in place for enlisted Marines on the southern Japanese island of Okinawa, where the rape of the 14-year-old allegedly occurred and where most of the 50,000 U.S. troops in the country are based.

An Army serviceman, meanwhile, was under investigation for allegedly sexually assaulting a Philippine woman in Okinawa, the U.S. military and Japanese officials said today.