Sri Lanka, June 29 -- A magnitude-5.3 earthquake struck central Pakistan on Sunday morning (Jun 29), according to the United States Geological Survey.

There were no immediate reports of casualties or damage from the shallow quake, which USGS reported had occurred around 3.30am (2230 GMT) with the epicentre around 60km north-northeast of Barkhan, a city in Pakistan's mountainous Balochistan province.

Pakistan straddles the boundary where the Indian and Eurasian tectonic plates meet, making the country susceptible to earthquakes.

The region can be challenging to navigate during crisis situations - in 2015, a 7.5-magnitude quake in Pakistan and Afghanistan killed almost 400 people across rugged terrain that impeded relief efforts.

The co...