Israel has assassinated Hamas's deputy head in a drone strike on the southern suburbs of the Lebanese capital Beirut late on Tuesday.
Saleh al-Aruri was killed in a "treacherous Zionist strike", Hamas said on its official channel.
A high-level security official said that Aruri was killed in the Israeli strike along with his bodyguards in the Lebanese capital's southern suburbs, which is a stronghold of Hamas ally Hezbollah.
Lebanon's state news agency ANN reported that three were killed and 11 wounded in the drone strike in Beirut, which hit during a meeting at a Hamas office. According to reports, the wounded were evacuated to the hospital.
The killing came as Israel's onslaught on the besieged Gaza Strip has killed at least 22,185 people and injured 57,035, according to figures from Gaza's health authorities.