Two municipal councilmen from a town north of Baghdad were ambushed and killed by gunmen Friday while on their way to a conference on the upcoming elections, officials said. The two men were driving down the highway from their hometown of Khalis, 80 kilometers (50 miles) from Baghdad , to Baqouba, the capital of Diala province, to attend the regional meeting, said deputy governor Ghassan al-Khadran. He said a third councilman was injured in the attack.