India, April 2 -- The United Nations on Tuesday expressed deep concern over the latest escalation of violence in Lebanon, despite the fragile ceasefire between Israel and Hezbollah, following an Israeli airstrike in southern Beirut that reportedly killed four people - including a woman - and injured several others.

Tuesday morning's strike reportedly targeted a Hezbollah official who Israel accused of aiding Hamas in planning an imminent terror attack against civilians.

It was the second Israeli strike in the southern suburb in five days.

"The UN reiterates the calls on all parties to exercise maximum restraint and refrain from further escalatory activities, which endanger civilians and jeopardize the progress already made to restore s...