The Biden administration is concerned the fragile ceasefire in Lebanon could unravel after Israel and Hezbollah exchanged fire in recent days, U.S. officials say. Why it matters: The ceasefire announced last Tuesday ended more than a year of fighting between Israel and Hezbollah.

Under the agreement, Israeli troops would withdraw from southern Lebanon while Hezbollah would move its forces further away from the Israeli-Lebanon border.

President Biden told Israeli Prime Minister Benjamin Netanyahu during a phone call on Tuesday that following the ceasefire agreement in Lebanon, the focus should now be on reaching a hostage-release and ceasefire in Gaza deal,