A man wanted over the death of a woman whose body was found at an address in Middlesbrough has been named by Cleveland Police today as Graham Barry Gibson.
The public have been warned not approach him.
More top news
It comes after security was stepped up around the country following the Manchester Arena attack which killed 22 people.
A murderer nicknamed 'Houdini' after escaping the death penalty seven times has been given the lethal injection.
The distress signal sparked a police hunt in the area to find the person or group who made it.