UPDATED 3.37PM: Police and rescue teams have searched properties near the home of missing Upper Hutt woman Mary Berrington.

More than 50 police officers and Land Search and Rescue volunteers conducted an intensive ground search surrounding the missing woman's home on Fergusson Drive, Upper Hutt.

Concerned family members and a large group of community members joined the search. Berrington, who is in her 60s, has bipolar disorder and police have grave concerns for her safety. She was last seen at her home on Tuesday night.

Today the Police Dive Squad searched the Hutt River from the Totara Park overbridge south for any sign of the missing woman or for indications that she may be in the river.

Sergeant Anthony Harmer said the search effort, which started on Wednesday, may soon be scaled back. "We have spoken with Mary’s family this afternoon and while the search will continue tomorrow we are coming to a point where we may need to scale back efforts as searches have been completed of all reasonably possible areas where Mary could be," he said. "

Police and Mary’s family would like to thank everyone who has supported the search operation so far." Berrington went missing in 2008 but was found days later.

If anyone found Berrington they should call 111, police said.