An Israeli airstrike has struck a densely populated residential area in Lebanon’s capital close to the U.N. headquarters, Parliament, the prime minister’s office and several embassies.

The Hezbollah militant group has a strong presence in central Beirut, known as the Dahiyeh, and the strikes came as Lebanese officials are considering a U.S.-brokered cease-fire proposal.

Lebanon’s state-run National News Agency said two missiles hit the area of Zoqaq al-Blat. The target of the airstrike remains unclear, and the Israeli army did not issue a prior warning.