An already fragile ceasefire between Israel and the Lebanese militant group Hezbollah appeared to be on shakier ground after rockets fired from Lebanon into northern Israel triggered Israeli airstrikes in the suburbs of Beirut.

The Israeli military struck southern Beirut on Friday for the first time since November, after Israel said that two projectiles had been fired from Lebanon.

Israel's strike on Beirut Friday came hours after two rockets were fired from Lebanon toward Israel. Hezbollah denied it had launched them.