Israel-Lebanon Border Clash

United Nations Interim Force in Lebanon (UNIFIL) troops react at the site of a shell that was launched from Lebanon to Israel, Sarada, Lebanon, Dec. 29, 2013.

An Israeli security coordinator stands next to the remains of a rocket after it landed near the northern town of Kiryat Shmona, Israel, Dec. 29, 2013.

An Israeli police explosive expert carries the remains of a rocket after it landed near the northern town of Kiryat Shmona, Israel, Dec. 29, 2013. 

An Israeli soldier walks out of a military bunker on the Israel-Lebanon border near the northern town of Metula, Israel, Dec. 29, 2013. 

United Nations Interim Force in Lebanon (UNIFIL) troops inspect the remains of a shell that was launched from Lebanon to Israel, Sarada, Lebanon, Dec. 29, 2013.

A Lebanese army soldier holds the remains of a rocket, Sarada, Lebanon, Dec. 29, 2013.

Lebanese army personnel inspect the remains of a shell that was launched from Lebanon to Israel. According to activists, the shell landed about 500m from the Lebanese-Israeli border, Sarada, Lebanon, Dec. 29, 2013. 

An Israeli soldier looks at a U.N. helicopter flying over the Israel-Lebanon border near the northern town of Metula, Israel, Dec. 29, 2013.