At least 16 Pakistanis injured in the city of Chaman, medical official says, as border forces clash for the second time in a week.

At least 16 Pakistani civilians have been wounded as fighting broke out between Pakistani and Afghan border forces for the second time in less than a week, a Pakistani medical official says.

An emergency was declared on Thursday at the main hospital in the Pakistani city of Chaman after heavy artillery firing started around midday (07:00 GMT) near the Chaman-Spin Boldak border crossing,

“Four civilians were in critical condition, and they have been sent to Quetta for further treatment, two children were among the wounded. “No dead bodies were brought to hospital so far.”

Pakistani military officials alleged “indiscriminate firing” was directed from the Afghan side of the border towards civilian areas of Chaman.

Chaman authorities told that markets near the border have shut down and a tense calm has fallen over the city. The Afghan Ministry of Defence alleged that Pakistani forces had opened fire first.

At least nine Pakistani civilians were killed on Sunday in a skirmish between the two countries near the same border crossing