More than 900 prisoners have escaped from a jail in eastern Democratic Republic of Congo's Beni city after suspected Islamist rebels attacked the facility, officials have said. The Allied Defence Forces (ADF) was thought to have launched the assault to free its members, the mayor said. Only 100 inmates remained in Kangbayi prison, the mayor said. The ADF was formed in 1996 in neighbouring Uganda to fight alleged discrimination against Muslims. It relocated to eastern DR Congo after being driven out by the Ugandan military from its bases in the Rwenzori Mountains....