Rescuers race to find survivors after Philippine quake kills 15

A rescuer assists a search dog as they try to reach survivors at a collapsed four

Rescue teams in the Philippines searched for signs of life beneath the rubble of a collapsed four-storey commercial building on Tuesday after a strong earthquake shook the country's biggest island, killing at least 15 people.

Heavy lifting equipment and search dogs were used as dozens of firefighters, military and civilian rescue teams raced to shift lumps of concrete in a commercial area of Porac, about 110 km (68 miles) north of Manila, where a 6.1 magnitude earthquake damaged several buildings on Monday.