The second in command of Hezbollah – the powerful Iranian backed militia in Lebanon – says Israel’s killing of civilians in Gaza risks causing a wider war in the Middle East.

The Shia Islamist group – classed as a terrorist organisation by the UK, US and the Arab League – is the largest political and military force in Lebanon.

Speaking in Beirut, Sheikh Naim Qassem told the BBC’s Orla Guerin that “very serious and very dangerous developments could occur in the region, and no-one would be able to stop the repercussions”.

“The danger is real,” he says, “because Israel is increasing its aggression against civilians and killing more women and children. Is it possible for this to continue and increase, without bringing real danger to the region? I think not.”

He insists any escalation would be linked to Israel’s actions. “Every possibility has a response,” he says.

Read more of Orla Guerin’s interview with Sheikh Naim Qassem here.