Middle East latest: Displaced people return to south Lebanon as ceasefire appears to hold

Israel -Hezbollah ceasefire marks first major step toward ending regionwide unrest triggered by Hamas ' attack on Israel .

Israel has said it will attack if Hezbollah breaks the ceasefire agreement, which was announced Tuesday .

At least 42 people were killed by Israeli strikes across Lebanon on Tuesday , according to local authorities.

In Gaza , more than 44,000 people have been killed and more than 104,000 wounded in the nearly 14-month war.

Iran welcomes ceasefire between Israel and Lebanon ’s Hezbollah , Tehran 's main militant partner in the Mideast .

Thousands of people have been returning to other previously evacuated areas in south Lebanon in defiance of an Israeli warning to avoid those areas.

Israel 's Arabic military spokesperson Avichay Adraee has warned displaced Lebanese not to return to their villages in southern Lebanon , but some videos circulating on social media show people defying these calls.

Ceasefire between Israel and Hezbollah in Lebanon begins early Wednesday morning .

Israel has said it will attack if Hezbollah breaks the ceasefire agreement.

The ceasefire calls for an initial two-month halt to fighting and requires Hezbollah to end its armed presence in southern Lebanon .