There have been violent scenes as Israeli police raided the al-Aqsa mosque in occupied East Jerusalem, saying "agitators" had barricaded themselves and worshippers inside.
Palestinians said stun grenades and rubber bullets were used in the pre-dawn raid and that 50 people were hurt.
Police said stones were thrown and fireworks fired at them in the mosque.
Militants in the Gaza Strip later fired rockets at Israel and its military carried out air strikes in response.