Perdana Menteri Pakistan, Imran Khan mengesa supaya ketegangan diredakan dan menjemput India memilih dialog berbanding kekerasan.
Tentera udara India memasuki ruang udara Pakistan selepas Pakistan melancarkan serangan udara di wilayah Kashmir yang dikuasai India.
Ties between the arch-rivals have been under intense strain after a suicide bombing in the disputed Himalayan region of Kashmir that killed 40 Indian troops.
Kashmir has been claimed by both India and Pakistan since independence in 1947.
Authorities overnight detained 60 more people from the Jamaat-e-Islami, besides more than 100 held the previous night.
A senior police official says arrival of more troops and arrests of leaders and activists of separatist groups is part of an election exercise undertaken to ensure fair elections.
India and Pakistan have fought three wars over Kashmir since the end of British rule in the sub-continent in 1947.
The comments underlined New Delhi's anger over an attack by a Pakistan-based militant group last week in the disputed region of Kashmir, which killed 40 paramilitary police.
The separatist leaders had been allocated security personnel to protect them from militants after they entered talks with the federal government.
The ICC believes the June 16 match will proceed as planned despite protests from Indian supporters.
Imran Khan demands India's proof of his country's involvement in the deadly suicide attack in Kashmir.
Tensions flare as India calls for retribution after Pakistan was accused of being responsible for a deadly suicide attack.
Harbhajan Singh says Pakistan is allowing cross-border terrorism as the South Asian powers clash over deadly militant attack.
Government forces are hunting for militants in the disputed region after Thursday's bombing that India has blamed on neighbouring Pakistan.
The Pakistan Cricket Board said an announcement of the new live broadcasters of the tournament would be made on Monday.
Within Kashmir, Indian military and police officials are looking for Mohammed Umair, the commander of the Jaish in the region, believed to have plotted the attack.
Kashmiri Muslims are facing a backlash in Hindu-majority India, mainly in the northern states of Haryana and Uttarakhand.
India's government says it had evidence the group, Jaish-e-Mohammad, had the backing of Pakistan and demanded Islamabad take action.
Pakistan-based Islamists claim responsibility for deadly suicide bomber attack.
The attack surpasses one in 2016 that was the biggest in 14 years.
All six rebels belonged to Ansar Ghazwat-ul-Hind, a small Kashmiri rebel group.
Three separatists were killed in the fighting, which also left a member of the security forces dead.
Gunmen shot dead Anil Parihar, the BJP state secretary for Kashmir, and his brother from close range on Thursday night as they walked home after closing the family bookshop in Kishtwar.
Indian foreign minister Sushma Swaraj denies that her government had sought a pretext to derail the offer to sit down with her Pakistani counterpart Shah Mehmood Qureshi.