Christina Grimmie, a singer who has competed on the US television programme The Voice, is in a critical condition after being shot following a concert in Orlando, officials in Florida say.

They say the male attacker opened fire when she was signing autographs.

The assailant - who was tackled by Ms Grimmie's brother - then shot and killed himself.

The 22-year-old singer was taken to a local hospital. The identity of the attacker was not immediately known.

(BBC)