At least ten Egyptian police officers have sustained injuries in a bomb explosion that destroyed their vehicle in the North African country’s beleaguered Sinai Peninsula.

Security sources, speaking on condition of anonymity, said the incident took place in the al-Zohour district, which lies south of the city of el-Arish and situated 344 kilometers (214 miles) northeast of the capital, Cairo, on Wednesday when an explosive device targeted the policemen’s patrol car, Lebanon-based Arabic-language al-Mayadeen satellite television news network reported.

No individual or group has claimed responsibility for the act of violence yet. Security forces have launched an investigation into the attack.

On October 6, at least three policemen were injured, one of them seriously, when a remote-controlled bomb struck their armored vehicle in el-Arish.

The development came only three days after a police captain and a policeman died of gunshot wounds sustained in an attack by unknown assailants in the same Egyptian city.

On September 29, an Egyptian police officer was killed and another injured in an attack by armed men against their patrol vehicle in the el-Baragil district of Egypt’s central province of Giza.

The Egyptian military has been engaged in operations to quell acts of terrorism and militancy in the Sinai Peninsula. It views the volatile region as a sanctuary for extremists, who use it as a safe haven.

The militant group Velayat Sinai, previously known as Ansar Bait al-Maqdis, has claimed responsibility for most of the attacks in Sinai. Last November, the group pledged allegiance to the Takfiri Daesh terrorist group, which is mainly operating in Iraq and neighboring Syria.