Four people have been arrested on suspicion of murder after a man was stabbed to death in Hull.

Police found the injured victim after being called to Princes Dock Street at around 11.20pm on Friday.

He later died in hospital, and his family are being supported by specially trained officers from Humberside Police.

The four suspects remain in custody, while cordons are in place in Princes Dock Street and Queen's Gardens.

Senior investigating officer Doug Blackwood said the force was working through CCTV footage, taking witness statements and carrying out door-to-door enquiries.

People living close by have been warned to expect an increased number of officers in the area over the weekend.

Mr Blackwood said: "I would encourage anyone in the area with concerns or information to speak to them.

"If you have any information that may assist with our inquiries, or if you have dashcam or CCTV footage of the area around the time of the incident, please get in touch with us."