Police have arrested the alleged supplier of explosives used in a series of bombings that killed 12 people in the Philippines on February 14, military and police spokesmen said. The suspect, Gappal Bana, widely known as "Boy Negro", surrendered to authorities late Thursday as a police and military dragnet was closing in on him in Camarines Sur province, just south of the capital, military spokesman Lieutenant Colonel Buenaventura Pascual said.The suspect will be presented to the public by Interior Secretary Angelo Reyes later Friday said police spokesman Senior Superintendent Leopoldo Bataoil. Bana, who was wounded in a clash with police Thursday before escaping and later turning himself in, is believed to have supplied the explosives used in simultaneous bombings in the financial district of Manila which left as many as six dead and about a hundred injured on Valentine's Day.