Officials are continuing the search for Michael Doherty, the 20-year-old missing college student, on Tuesday.
Police are using search dogs, multiple drones and multiple units in the water in their efforts.
Authorities told reporters Tuesday morning that they found a pair of shoes and a shirt so far, which has helped them focus the search area. The marsh they have been searching can reach seven feet deep in some areas, police said.
Franklin police are searching for a college student who they say went missing over the weekend.
Michael Doherty, 20, was last seen around 1:30 a.m. Sunday near Phyllis Lane in Franklin. He is a junior at Duke University and was already home for the summer, WBZ reported.
Doherty is a white male, 5 feet 10 inches tall with brown hair and brown eyes. He was wearing a blue T-shirt with a Nike symbol, black pants and sneakers, police said.
Doherty "had been attending a gathering with some friends," police wrote in a statement on Monday, according to the Boston Globe, at the time when he was last seen. Police are interviewing those friends.
Officials are asking residents to check outside their homes, including any sheds or detached buildings.
Police are using K-9 units and canoes in the search on Monday, which includes a "swampy area" near Phyllis Lane, according to WBZ.
State environmental police also joined the search Monday morning, WBZ reported, because their officers are trained in searching through woods and swamps.
Anyone with information is advised to call Franklin police at 508-528-1212. Officials are warning residents that there will be increased public safety presence in the area as other agencies join the investigation.
Media release: Emergency crews continue to search for Michael Doherty. Anyone with information is asked to call Franklin PD. pic.twitter.com/2apQCT4GVE— Franklin Police (@franklinpolice) May 15, 2017