Pictured: 19-year-old stabbed to death in the back by group of teenagers

This is the first picture of an “amazing” 19-year-old boy who died after he was fatally knifed in the back.

Harvey Waterfield was found badly wounded in the Russell’s Hall area of Dudley, West Midlands, just before 7pm on Monday.

Despite desperate attempts by members of the public to save the teenager, he died at the scene from a single stab wound.

Three teenage boys, aged 15, 16 and 18, were arrested on suspicion of murder alongside a 20-year-old man.

Harvey’s heartbroken family have paid tribute to their “amazing son and brother”.

In a statement, they said: "As a family we are devastated at the loss of our son Harvey.

"He was an amazing son and brother and words can’t possibly explain how we are all feeling.

Read more: UK ‘very close to breakthrough coronavirus immunity test’

"If anyone has any information about what happened to him please come forward and tell the police.

"We ask for some level of privacy as we deal with this tragic event."

Following the arrests of four people detective chief inspector Jim Munro, of West Midlands Police, said: “While we now have four people in custody we are still appealing for anyone who may have seen the incident to get in contact with us.”

Dudley police commander, chief superintendent Sally Bourner, added: "Our thoughts are with the family and friends of Harvey at this sad time.

“Violence has no place in our community and neighbourhood team officers have been providing reassurance in the local area.

Read more: Poll reveals young people more likely to be panic buying that pensioners

“More broadly we are working hard with partners as a top priority to tackle violence in our borough.

“This is a fast moving investigation and I would urge anyone with information to do the right thing and get in touch as we work tirelessly to bring those responsible to justice.”