RUMFORD — State and local police have shut down the Memorial Bridge across the Androscoggin River so they can search the river in connection with the double homicide of Victor Reed Sheldon and Roger Leroy Day Jr.

According to Stephen McCausland, a spokesman for the Maine Department of Public Safety, State Police are making significant process in their investigation into the shooting deaths.

Police were using a helicopter and focusing on the Androscoggin River, McCausland said. He also said they had searched an apartment on Washington Avenue and had interviewed dozens of people over the last three days.

The Memorial Bridge over the river was closed to traffic and blocked by fire engines on either end as police searched the river from above for evidence or clues. McCausland did not say specifically what or who several troopers and detectives were looking for but said, “significant progress is being made” in the double homicide investigation.

Late Monday Day, 48 and Sheldon, 22 were found shot dead inside a home on Pine Street. Police have said they are looking for a dark-haired man in his mid-20s in connection to the slayings.

Here an officer uses binoculars as he hovers above the Memorial Bridge.