Hamas confirmed on Sunday that Ahmad Zamzam, a senior officer in the terrorist organization’s Interior Ministry, was killed overnight in the al-Maghazi refugee camp in central Gaza, as Israel continues to intensify pressure on Hamas leadership following repeated ceasefire violations.

In an official statement, Hamas said Zamzam was “assassinated by armed men” in the camp. The group claimed that its internal security apparatus has arrested one suspect and opened an investigation into the incident.

“Ahmad Zamzam, an officer in the Interior Ministry of Hamas, was killed by armed men in the al-Maghazi refugee camp in the central Gaza Strip,” the Hamas Interior Ministry said. “Security services have arrested a suspect and an investigation is underway.”