A grenade blast in the capital of Indonesia`s restive Aceh province injured 12 people on Monday just a few hours before U.S. ambassador Ralph Boyce arrived for a two-day visit here. Suspected Free Aceh Movement (GAM) members threw the grenade at a crowd of people between a BNI bank building and a market in Banda Aceh around 8:30 a.m., an official said. Police spokesman Adj. Sr. Comr. Agus Dwiyanto said the grenade missed a police patrol car and landed instead near the crowd in the market. Full Story