Authorities say at least 25 people have been killed after a bomb exploded at a railway station in Pakistan's Balochistan province.

Dozens of others were injured in the blast, which happened as a popular morning train was about to leave Quetta station in southwestern Pakistan for Peshawar.

A militant group, the Balochistan Liberation Army, said it carried out the bombing in what police are deeming a suicide attack.

There has been a recent surge in deadly attacks in the province, driven by demands for independence and control over local resources.

The city’s commissioner has said that at least 25 people were killed, including the suicide bomber, and about 50 others were injured in the blast.

Senior police official Muhammad Baloch said the explosion was thought to have been caused by a suicide bomber carrying 6-8kg of explosives. Among the dead and injured were both civilian and military, he told the BBC.

Videos shared on social media appear to show the moment the explosion happened on Saturday morning, with dozens of people visible at the platform.

There is also footage circulating of the aftermath, showing a number of injured people and debris spread across the station.

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