A police cordon was put in place in Ipswich town centre while officers investigated an "alleged incident".
The alleyway off of Tavern Street was blocked off for a time on Tuesday afternoon.
A spokesman for Suffolk police said: "A police cordon was briefly put in place on Tuesday while officers investigated an alleged incident which occurred in the early hours of Tuesday morning."
A forensic van was also spotted nearby while the police cordon was in place.
Enquiries are still ongoing.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article