Emergency vehicles sit in the parking lot at Sandy Beach on Friday night. PHOTO/JERRY SPAR

UPDATE: Saturday, 9:05 a.m.: Emergency personnel recovered a body at about 8:45 a.m. More information will be posted as it comes available.

The beach, which had been closed during the search, was to reopen at noon, according to a Hopkinton Parks & Recreation commissioner.

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Emergency personnel were at Hopkinton’s Sandy Beach on Friday night following a report of a possible drowning.

Dive teams from Westborough and Framingham were among those assisting in the search. Boats could be seen sweeping the water.

Hopkinton Police personnel on site shortly after 11 p.m. said they were unable to share any information other than to confirm that there was a missing swimmer.

UPDATE: Saturday, 7 a.m.: Following is a press release from the town.

Police Chief Joseph Bennett and Interim Fire Chief Gary Daugherty reported that their first responders are jointly involved in the search for a 22-year-old male swimmer who went missing Friday.

A 911 call came in around 8 p.m. Friday to report that a swimmer had not returned with his friend after a swim at Sandy Beach. The swimmers went beyond the safe-swimming zone set up at the beach and continued further into Lake Maspenock. Upon arriving at the beach, the returning swimmer noticed his friend was missing and called 911.

Hopkinton firefighters and police officers immediately kicked off a search. Divers from the Massachusetts Fire District 14 Technical Rescue Team also participated. The Hopkinton Fire Department used its sonar-equipped rescue boats and received mutual aid from Natick Fire Department and Westborough Fire Department boats.

Search efforts continued until about midnight. Severe weather resulted in multiple interruptions of the operation.

Search crews will resume operations at 7 a.m. Saturday. Sandy Beach remains closed until further notice as first responders continue their efforts.

This is now considered a recovery operation. The family of the missing swimmer has been notified.

“We responded to the scene along with the Hopkinton Fire Department, and we have worked as a team with Interim Chief Daugherty’s firefighters throughout this operation,” Chief Bennett said. “The efforts of Police Sgt. Bill Burchard and Fire Lt. Scott Jurasek resulted in a cohesive effort that brought together all of our resources.”

“Lt. Jurasek’s swift actions allowed us to begin a search operation immediately,” said Interim Chief Daugherty. “We faced a number of obstacles during the search, including limited visibility and thick weeds in the lake. We decided around midnight to halt the recovery effort and will return in the morning when conditions are safer.”

Chief Bennett and Interim Chief Daugherty praised the efforts of the technical rescue team’s divers and Hopkinton’s mutual aid partners throughout the operation.