A US Army force in Mogadishu, consisting mostly of Army Rangers from Bravo Company, 3rd Battalion, 75th Ranger Regiment; Bravo Company, 1st Special Forces Operational Detachment-Delta (1st SFOD-D), better known as "Delta Force"; and helicopters from the 1st Battalion, 160th Special Operations Aviation Regiment (Night Stalkers), attempted to seize and arrest two of Aidid's upper-echelon lieutenants during a meeting in downtown Mogadishu. Shortly after the raid began, Somali militia and civilian fighters managed to shoot down two MH-60 Black Hawks helicopters. The subsequent rescue operation to secure and recover the crews of both downed helicopters drew the raid intended to last no more than 30 minutes, into a 17 hour fight. The battle resulted in 18 dead, 74 wounded, and 1 pilot taken prisoner. 1 Pakistani soldier and 1 Malaysian soldier died during the rescue. UN estimates put the Somali casualties between 1,500 and 3,000 casualties, inluding civilians; SNA militia forces claimned only 315 casualties, with 812 wounded.