Pakistan has warned it will retaliate if India takes military action over the Pulwama attack.
More than 40 Indian paramilitary police were killed in a suicide attack on Thursday 14 February in Indian-administered Kashmir, raising tensions between the two nuclear-armed countries.
Pakistan-based militant group Jaish-e-Mohammad said it was behind the attack and India has accused its neighbour of backing the group.
Pakistan Prime Minister Imran Khan went on television to call on India to provide evidence to support its claims that his country was involved.
Khan said: "If you think that you will launch any kind of attack on Pakistan, Pakistan will not just think about retaliation, Pakistan will retaliate." He added that only dialogue could help solve issues in Kashmir.
Meanwhile, Saudi Arabia has said it will work to de-escalate tensions between India and Pakistan, ahead of Crown Prince Mohammed bin Salman's arrival in Delhi.
The prince is on a tour of Asia and has just visited Pakistan.