US President Donald Trump on Sunday said he was hopeful of agreeing a deal with Iran after the country's supreme leader warned that any US attack on the Islamic republic would trigger a regional war.
After being rocked by explosions, typically bustling Quetta lay quiet on Sunday, with major roads and businesses deserted, and people staying indoors out of fear.
However, no agreement has yet been reached on the number of Palestinians permitted to enter or exit, the sources added, noting that Egypt plans to admit "all Palestinians whom Israel authorises to leave".