These are the British-made cluster bombs Amnesty International says are being used in Yemen

Bomb casing

Expands

Unclips

2.45m

On impact a high-velocity plasma jet penetrates armour up to 25cm thick, while the bomb casing explodes into shrapnel

Bomblets expand and arm themselves independently, detonating on contact with vehicles or anything else they hit

The cloud of bombs spread out. By the time they reach the ground they cover a rough oval 150m by 60m

It opens and releases 147 bomblets

450kg unguided bomb dropped from aircraft

Bomb casing

Expands

Unclips

2.45m

On impact a high-velocity plasma jet penetrates armour up to 25cm thick, while the bomb casing explodes into shrapnel

Bomblets expand and arm themselves independently, detonating on contact with vehicles or anything else they hit

The cloud of bombs spread out. By the time they reach the ground they cover a rough oval 150m by 60m

It opens and releases 147 bomblets

450kg unguided bomb dropped from aircraft