GAZA CITY (Ma’an) -- Unidentified assailants raided the headquarters of the Palestinian Authority-controlled Civil Administration building in the northern Gaza Strip overnight Wednesday.

Headquarters chief Maher Abu al-Quf told Ma'an that the Israeli side of the office alerted them to an attempted robbery at 11.30 p.m. on Wednesday evening.

Personnel rushed to the site but the suspects had left the scene after damaging the offices and ransacking its contents.

It is the 11th time such an incident has taken place, Abu al-Quf said.

Hamas police have opened an investigation.

The Civil Administration, which in Gaza remains under the control of the West Bank Palestinian Authority government, is charged with coordinating with Israel on matters relating to the crossing terminals.