A helicopter crashed near Abbottabad city in northwest Pakistan during an operation by US Special Forces that resulted in the killing of Al Qaeda chief Osama bin Laden. Pakistani TV news channels reported that the military helicopter burst into flames after crashing into the compound of a house near Bilal Town area near Abbottabad, a short distance from the Pakistan Military Academy. Pak-TV reports said that two other helicopters participated in the operation during which some persons were killed and several foreign nationals, including women and children, were detained. There was however, no official word on the development.