Twenty foreigners were killed by six heavily armed militants at an upscale restaurant in the diplomatic quarter of Dhaka early Saturday after an hours-long siege was ended by Bangladeshi forces Sharp weapons were used to kill the victims with local media reporting that some were beheaded Thirteen other foreign captives were rescued by paramilitary forces, who killed all the attackers Gunfire was heard as troops moved to end the standoff more than 10 hours after the attack began