Pakistan's national carrier PIA may suspend flights to Mumbai from next week, NDTV reports.

The PIA or Pakistan International Airlines has two flights a week between Mumbai and Karachi.

It is the only airline flying between the two countries as no Indian airline flies to Pakistan. PIA also operates flights from Karachi and Lahore to Delhi.

PIA had cut down its flights because of poor traffic amid increasing strain between the two countries over the past year.

Relations between India and Pakistan have taken another sharp plunge after two soldiers were killed and mutilated in Kashmir earlier this week by Pakistanis at the Line of Control. India has vowed retribution, with the army saying it will respond to the barbaric act at a "time and place of its choosing".