At least 13 killed in Pakistan train station bomb blast, police say

QUETTA, Pakistan (Reuters) -At least 13 people were killed and 25 injured in a bomb blast at a railway station in Quetta in southwestern Pakistan on Saturday, a police official told Reuters.

Pakistan is grappling with a surge in militant attacks in its northwest and a growing separatist insurgency in the south.

"The blast took place inside the railway station when the Peshawar-bound express was about to leave for its destination," said the senior superintendent of police operations, Muhammad Baloch.

No group has claimed responsibility for the blast.

(Reporting by Saleem Ahmed in Quetta, Ariba Shahid in Karachi; Editing by William Mallard)