Vincent McAviney: UK correspondent on the fatal stabbing attack on two children in Southport - Heather du Plessis-Allan Drive

Two children have been killed and nine others injured after a deadly stabbing attack in Southport, north of Liverpool.

Six young victims have been left in critical condition and police have arrested a 17-year-old boy on suspicion of murder and attempted murder.

UK correspondent Vincent McAviney says Prime Minister Sir Keir Starmer and the King and Queen are among those who have sent their sympathies to the victims of the attack. 

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