Police in Essex are hunting a man armed with a firearm who threatened officers in Wivenhoe near Colchester.
Police went to Stanley Road in the town following reports of break-in at around 9.35pm on Tuesday evening.
They found a man who appeared to have a firearm and he threatened the officers before making off on foot.
An extensive search involving specialist officers took place.
Police have issued a description of the man they are trying to trace.
- White with a slim build
- Short light/ash blond hair
- Around 6ft/6ft 1ins tall
- Wearing a navy blue quilter bomber-style jacket
Police are asking the public to contact them if they see anything suspicious by calling 999 or Crimestoppers anonymously on 0800 555 111.