Iran's missile and drone attack on Israel raises the risk of an escalation in the region, the BBC's Middle East correspondent says.

Israel says 99% percent of projectiles fired at it by Iran overnight were intercepted by it and its allies.

IDF spokesperson Daniel Hagari says the drones could take several hours to arrive.

This is uncharted territory fraught with risk, writes our chief international correspondent.

Israel says casualties from rocket attacks would have been "far higher" without the system.

With Iran and Israel in direct confrontation, BBC security correspondent Frank Gardner considers what comes next.

World leaders are scrambling to prevent the Middle East entering a damaging wider conflict.

Officials said Joe Biden urged Israel to "think carefully" before launching a response to the attack.