The Indian government has given the Pakistan national airline PIA permission to make two more flights to evacuate its nationals stranded in India.

A ban on commercial use of each other's airspace came into force today as part of tit-for-tat sanctions imposed by both countries following the attack on the Indian parliament last month.

A spokesman for Pakistan International Airlines said hundreds of Indian and Pakistani travellers had been unable to get seats on the last scheduled flights on Monday.

From the newsroom of the BBC World Service