Lebanon said Monday it would extend a ceasefire deal with Israel until mid-February, even though the Israeli military failed to meet a deadline to withdraw its troops and killed 22 people in the south of the country.

The initial ceasefire plan, announced in late November, brought an end to 14 months of conflict between Israel and the Lebanese armed group Hezbollah. Brokered by the US and France, the agreement gave Hezbollah 60 days to end its armed presence in southern Lebanon and required Israeli forces to withdraw over the same period.

Israeli forces killed at least 15 people and injured dozens more in the country’s south, Lebanese officials said. Israel had agreed to withdraw its troops from the area as of Sunday.