Two young men were attacked and robbed while walking home from the pub.
Haverhill police is appealing for information that may help them trace a group of young men who are believed to have robbed the pair on the railway walk in Haverhill.
The incident took place at about 1.50am on Sunday, January 25.
A man and a woman in their 20s were returning home having been drinking in the Woolpack pub in Queen Street where, it is understood, there had been an argument of some kind.
They were attacked by a group of five men, all also believed to be in their 20s.
One of the victims was punched and kicked in the head and had an Apple iPhone 6, worth £500, stolen.
“I can only assume they had lain there in wait,” said Inspector Peter Ferrie of Haverhill police. “Some came from the front and some came from the back and they attacked them.
“We don’t believe it’s part of a wider pattern of crime. We’re treating it as an isolated event.
“Over the years, we haven’t had many robberies like this. They are unusual here.
“On the railway walk, you’re not over-looked. There are high trees that obscure the view. You have lots of ways to go if you’re running away if you need to escape in a hurry. You can go in any number of directions.”
Two men have since been arrested and police are appealing for information from the public that may help them to trace any of the other three thought to be involved.
Anyone with any information should contact Haverhill police on 101 or Crimestoppers, anonymously, on 0800 555111.
Insp Ferrie said: “I would say that people should try to stick to well lit roads when they are out late at night or in the dark.
“They should be careful and always try to walk in groups if they can.”