A strong earthquake measuring 6.4 on the Richter scale struck Indonesia's North Maluku province Saturday, according the country's Meteorological and Geophysics agency.

The quake struck at a depth of 30 km and 155 km southeast of the town of Labuha at 14:41 p.m. local time (0741 GMT), according to the agency.

There were no immediate reports of casualties or damage, and no tsunami alert was issued.