Twifo Mampong: 3 dead, one trapped, after galamsey pit collapsed on five youngsters The incident occurred late on Thursday at Twifo Mampong in the Twifo Atti-Morkwa district. District Chief Executive Isaac Yawson said preliminary investigations indicated the pit belonged to a known illegal miner and that the victims had allegedly entered it at night without the owner’s consent. Yawson said he had ordered the arrest of the pit owner as rescue operations continued. Illegal mining, known locally as “galamsey,” has claimed dozens of lives in Ghana in recent years, with poorly regulated pits prone to frequent collapses.