Police divers searched a pond in Ansdell earlier today during a major search for a missing pensioner.
A Underwater Search and Marine Unit, from South Wales Police, was pictured in Blackpool Road.
The frogmen did not find the man, in his 80s, in the water, a spokeswoman for Lancashire Police said.
At around 1.30am, the police helicopter was also out looking for the man, with searches "on-going to find him".
As of this afternoon, there had been no public appeal issued because of "on-going searches and enquiries", the spokeswoman added.