At least eleven schoolgirls have been killed by an explosion at a warehouse in Yemen, medical officials say.

A total of 54 people in Sanaa have been wounded with eleven children in nearby schools pronounced dead after a metal workshop exploded.

Officials revealed it is not known what caused the blast but Houthi rebels, who have controlled the capital since 2014, blame an airstrike by the Saudi-led coalition.

A Yemeni schoolboy reacts after his sister was allegedly killed in an alleged Saudi-led airstrike

A wounded Yemeni schoolgirl lies on a bed as she receives treatment at a hospital

The area has been sealed off after the blast destroyed the metal workshop and damaged nearby schools.

There was no immediate comment from the coalition, which has been at war with the Iran-aligned rebels since 2015.

The officials spoke on condition of anonymity after they were told not to brief media.

Yemenis gather around a wounded schoolgirl. There was no immediate comment from the coalition, which has been at war with the Iran-aligned rebels since 2015

A Yemeni man receives treatment at a hospital. The area has been sealed off after the blast destroyed the metal workshop and damaged nearby schools