Israeli airstrikes pound Gaza after rocket fire
No group in Gaza claimed responsibility for the projectile attacks, which came shortly after the Saturday funeral of Razan al-Najjar, 21, a volunteer with the Gaza health ministry, who was fatally shot in the chest by Israeli soldiers near Khan Yunis on Friday.
Ambulances and medical crews attended the funeral, with Najjar's father holding the white blood-stained medics' jacket she wore when she was shot, as mourners called for revenge.
Gazans have since 30 March staged border protests demanding the return of Palestinians to land they fled or were expelled from during the 1948 war surrounding Israel's creation.
Protesters have also demonstrated against the crippling decade-long Israeli blockade of the Gaza Strip.
No Israelis have been killed and only a few soldiers have suffered minor injuries.
On Saturday, the Arab League condemned the US decision to veto a UN draft resolution calling for measures to protect Palestinians amid the deadly crackdown by Israeli forces.
The league's head, Ahmed Abul Gheit, made the remarks in a statement saying the move will embolden Israeli authorities in its campaign of shooting and killing protesters.
The Kuwait-drafted text had called for "measures to guarantee the safety and protection" of Palestinian civilians in Gaza and the occupied West Bank, and requested a UN report to propose an "international protection mechanism."