ARMED police are at an incident in Southend.
Eyewitnesses have also reported seeing a number of ambulances and a police helicopter hovering above Park Street.
The road has been temporarily closed by the emergency services while they deal with the incident.
A resident of nearby Hamlet Road, who did not want to be named, said: “There are police everywhere, and the CID have turned up.
“The road’s been completely closed off and there’s a police helicopter hovering above.
“I’ve never seen so many coppers in one place – there’s half a dozen police cars and more arriving by the minute.”