Police were called to a block of flats in Norwich on Wednesday night.
Emergency services went to Suffolk Square, off Vauxhall Street, in Norwich at about 8.30pm.
It is not clear at this stage what has happened, but neighbours said an ambulance came and went shortly after 9pm.
There were two police cars and one forensics van parked outside block F of Suffolk Square.
One neighbour said: 'I don't know what's going on.
'There was an ambulance here and the forensics van, but the police aren't telling us what's happened, apart from that it's nothing for us to be worried about.'
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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 here