Hamas
Two people were killed in the demonstrations on Friday.
The U.S. officially recognized the holy city as Israel's capital.
The Islamist group has ruled Gaza since 2007.
WHAT'S HAPPENING
The US is the leading country that unilaterally brands entities around the world as terrorist.
Yehya Al-Sinwar was freed in a 2011 prisoner swap with Israel after more than 20 years in jail.
Hamas claims the attacker was a member of its group.
Israeli military blamed Hamas for a rocket strike.
"We have neutralized the tunnel in Israeli territory, rendering it unusable for infiltration by Hamas terrorists."