Christians in Lebanon pray for peace outside Saint Maroun church, a cultural landmark

Worshippers took part in the Good Friday procession outside of Mar Maroun church carrying flowers and candles saying they hoped for an end to the war with Israel.

The Israeli military said later on Friday that it had begun striking what it called "terror infrastructure" in Beirut.

Reuters reporters heard three loud blasts echoing across the city.

Lebanese media outlets said the strikes hit Beirut's southern suburbs, after Israel's military spokesperson issued a new warning for the entire zone earlier on Friday.

More than 1,300 people have been killed in Israeli strikes and about a fifth of Lebanon's population has been displaced. Israel has issued evacuation orders covering around 15 percent of Lebanese territory.

Lebanese Prime Minister Nawaf Salam said on Thursday there was no end in sight to a war that had already displaced a million people over the last month, as families fleeing Israeli strikes said they were exhausted by repeated rounds of conflict.

Lebanon is entering the second month of conflict between Iran-backed armed group Hezbollah and Israel, which has pledged to occupy swathes of southern Lebanon as part of a "security zone" to protect its own northern residents.

Israel launched a full-scale air and ground campaign after Hezbollah fired into Israel on March 2 in solidarity with Iran after the U.S. and Israel began their war on Tehran.

-Production: Thomas Suen, Emilie Madi, Dina Sakr/Reuters