New Delhi, April 10 -- Pakistan is all set to host talks between the US and Iranian delegations in Islamabad on Saturday, though Iran's participation is still uncertain after deadly Israeli strikes on Lebanon that threatens the temporary truce.

On Wednesday, Israel's heaviest strikes on Lebanon since Hezbollah entered the Middle East war in early March killed hundreds, rattling the uneasy ceasefire between Washington and Tehran less than 48 hours after it came into force.

Pakistan and the US have had a bumpy relationship since a US operation secretly killed Al-Qaeda leader Osama bin Laden in a compound just 75 miles north of Islamabad in 2011. But ties blossomed again last year. At the same time, it shares close relationships with its n...