Nearly 350 hostages have been rescued at the end of a deadly standoff between Pakistan’s military and armed militants who hijacked a train in the southwestern Pakistani province of Balochistan, a security source told CNN Wednesday.

Pakistan freed 190 hijacked train passengers held hostage Wednesday as the battle to free remaining hostages held by the militant group Baloch Liberation Army continued.

Baloch separatist militants blew up a railway track and launched rockets at the Jaffar Express, which was carrying over 400 passengers.