Smoke from Israeli strikes rises over Gaza City, in the northern Gaza Strip, Sunday, July 27, 2014.

Israel carried out air strikes in the Gaza Strip on Saturday after Palestinian militants there fired rockets into southern Israel.

The overnight air strikes targeted two training camps belonging to the Islamist group Hamas, causing no injuries, officials and witnesses said.

Late on Friday, Gaza militants had fired at least two rockets into Israel. One struck a town, damaging a bus but causing no injuries. A second was shot down by a missile defense system.

A Palestinian group that supports the group ISIS claimed responsibility for one of the rockets fired at Israel.

The cross-border violence came as tension remained high in Jerusalem and the West Bank, where Israeli security forces and Palestinians have clashed over the past week.

Tensions remain high

Israel deployed hundreds of extra police around the Old City of Jerusalem on Friday after Palestinian leaders called for a ‘day of rage’ to protest at new Israeli security measures.

Around 800 extra police were posted in the heart of the city, where tensions have been high for the past week, following violent clashes at al-Aqsa Mosque and stone-throwing attacks by Palestinians against Israeli cars.