GENERAL SANTOS CITY, Philippines (AP) _ Suspected Muslim secessionist rebels set fire to road building equipment belonging to a U.S. construction firm, an official said Friday. No one was hurt.

The Moro Islamic Liberation Front, a Muslim rebel faction, are known to operate in the area, about 660 miles south of Manila.

A company official said a rebel leader known as Commander Manny confronted the project director of the Morrison-Knudsen company Tuesday for not ''coordinating'' with rebels regarding the road project.

Later, seven men believed to belong to the rebel group arrived at the construction site in Lun Masla. The men fired weapons in the air, poured gasoline on a backhoe vehicle and set it on fire.

The 115-mile, $40 million Mindanao road project is funded by the U.S. Agency for International Development.