Armed police and sniffer dogs swooped in to arrest a suspect.
The officers were called to New England Road in Brighton at 1pm this afternoon.
Witnesses said they saw the police using specialist tools in order to gain entry into a property.
Dog teams were also called in, and one man appeared to be arrested in the incident.
More as we get it.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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