Israel on Tuesday carried out strikes on Qatar’s Doha targeting senior Hamas officials, Al Arabiya reported citing Israeli officials.

The Qatari foreign ministry condemned in a statement the Israeli attack, which it said targeted residential buildings housing several members of the political bureau of Hamas.

Preliminary information obtained by Al Arabiya indicates that Hamas’ Chief Negotiator Khalil al-Hayya was killed in the Israeli strike in Qatar.

Sources later added Zaher Jabarin, Khaled Mashal, and Nizar Awadallah were targeted in the attack.

The Israeli military confirmed later that it targeted senior Hamas leaders. An Israel official had said that the US was notified before Hamas leaders were struck.

“The IDF (Israeli military) and ISA (security agency) conducted a precise strike targeting the senior leadership of the Hamas terrorist organization,” the military said, without specifying where the strike took place.

A Source from Hamas told Al Arabiya that the negotiating delegation was targeted during its meeting in Qatar, where the Palestinian group’s political bureau is based.

Just before 4 p.m. local times, several blasts were heard in Doha. Smoke was seen rising over the Katara District in the capital, an eyewitness said.

A resident living in Doha told Al Arabiya English that they heard at least five blasts.