Police say a bomb put inside a garbage bag exploded at a street market in Thailand’s capital and injured seven people. Police Col Narongrit Promsawat said the explosion slightly injured seven people and damaged merchandise stalls at the market on Sunday night. It happened in a residential area in front of a barber shop and across from Ramkhamhaeng University. Forensic scientists say the bomb was made of nails and other materials but they have not verified what set off the explosion. Narongrit said the area was prone to violence from school gang rivalry.—AP