Acting Commissioner Vicks Hayward-Melen held up an image of the suspect at a press conference at the site this afternoon.

She said: "He was described as black with a beard.

"He was wearing a black Adidas baseball cap with a White motif, a black jacket with a motif on the chest and black trainers with thick white soles.

"He is also believed to be wearing or have been wearing a gold earring and was carrying a black backpack."

The police chief added: “Officers are currently working to track his movements through CCTV and I can confirm that we know he left in the direction of Leigh Woods behind me.

"At this stage we are not aware of any current risk he poses to the wider public. However, if anyone sees him, we advise them not to approach him and please do call 999 immediately."