Narcotics agents raided a hotel near Clark Air Base and seized morphine worth $4.3 million that was allegedly bound for the United States, police said Saturday.

The agents found 4.4 pounds of morphine Thursday when they raided the hotel about 50 miles north of Manila, according to Capt. Francisco Bustamante, chief of the Philippine Constabulary's regional anti-narcotics unit.The suspected trafficker is a U.S. serviceman, and the morphine probably came from China or Thailand, Bustamante said.

He said the serviceman, who had been under surveillance for two months, left his hotel room shortly before the raid, but his name was given to U.S. military authorities and he was expected to be arrested.