Six children remain in critical condition as police quiz boy over Southport knife attack

All the casualties are now being treated in hospitals, including children’s hospitals in Liverpool and Manchester

Forensic officers on Hart Street in Southport, Merseyside, where a man has been detained and a knife has been seized (James Speakman/PA)

Six children and two adults remain in critical condition as police continue to question a 17-year-old boy over a deadly knife attack in Southport.

Two children were killed after a suspected teenage knifeman attacked a Taylor Swift-themed holiday dance class on Monday morning.