Pakistan’s military accuses neighboring India of sponsoring militants in the restive southwestern Balochistan province, which saw an unprecedented attack this week by armed separatists.

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

The Balochistan Liberation Army claims it killed 6 security forces and seized a Pakistani passenger train carrying about 500 people in a remote, mountainous region.

Pakistani officials say insurgents who attacked a passenger train carrying 440 people in the southwest killed 21 hostages but security forces rescued the others.

Pakistan's army says it has freed more than 300 hostages from a passenger train seized by militants in Balochistan province on Tuesday. The military spokesperson said 33 militants were killed during the operation.

India denied accusations by Pakistan that it was involved in the Jaffar Express attack. Pakistan claimed the rebels had ties with leaders in Afghanistan. India urged Pakistan to address its internal issues instead of blaming others.