Police are searching for at least five young men who they allege attacked three friends walking home in Napier in the early hours of Sunday.
The unprovoked attack occurred at about 1am in Greenmeadows, Napier.
The three friends were near the intersection of Atherfold Crescent and Curie St when a group of at least five males aged between 17 and 25 demanded they hand over various items before assaulting two of them, police say.
One of the victims is thought to have been knocked out for a short time.
They left with a mobile phone and watch.