Hamas says its deputy head Saleh al-Arouri has been killed in a blast in Beirut.

He is said to have been among four people killed in an explosion at Hamas’s office in Dahiyeh, one of the Lebanese capital’s southern suburbs.

Al-Arouri was the deputy head of Hamas’s political bureau and known to be deeply involved in its military affairs.

Elsewhere, the Palestinian Red Crescent says five people have been killed and three injured in Israeli bombing on its headquarters in Khan Younis, in south Gaza.