Factbox-Hamas leaders killed by Israel and those who remain

(Reuters) – Israel launched an attack on Hamas leaders in Qatar on Tuesday, expanding its campaign against the Palestinian militant group.

Israeli officials told Reuters the strike was aimed at top Hamas leaders including Khalil al-Hayya, its exiled Gaza chief and top negotiator. Two Hamas sources told Reuters that Hamas officials in the ceasefire negotiating team survived the attack.

Here are some of the top Hamas figures killed by Israel and those who remain alive almost two years…