Key Points:

A British tourist is in a coma in Hawke's Bay Hospital after a vicious Napier attack left him with boot marks on his head and face.

The man, whose condition is described as critical, was set upon by three men as he walked past Taradale's main shopping area in Gloucester St just before 1am today.

He was knocked to the ground and stomped on with such ferocity there were boot imprints on his head and face.

The severity of the attack appalled police.

The man was taken to hospital after a passer-by alerted emergency services.

Police have arrested one man and were looking for another two.

The victim, who was visiting from the UK, had attended a stag party in Napier during the evening.

He had become separated from his friends before the assault said police, who were keen to speak to any witnesses.