Tragedy struck on two Minnesota lakes this week, with a 5-year-old boy drowning Tuesday in Chisago County and a man still missing Wednesday, two days after his unoccupied pontoon boat was found adrift in Forest Lake.

Investigators said Matthew Siefert, 5, of Rush City drowned after falling into Round Lake when he went to a dock to get a life jacket.

The Sieferts, who were visiting relatives and friends, had told Matthew that he needed to wear a life jacket to go swimming in the lake. A short time later, they could not find him, according to a news release from the Chisago County Sheriff's Office.

County dispatchers received a report of a missing child at 7:16 p.m. Deputies were on their way when family members and friends searching for Matthew pulled him from the water, which was 12 to 14 feet deep at the end of the dock.

A family member and a friend began CPR, but medical personnel pronounced him dead at the scene. His life jacket was on the dock.

Forest Lake, Big Watab Lake

In Forest Lake, there were still no answers Wednesday about the whereabouts of Tod Crawford, 51, who has been missing since Monday.

That's when a passerby noticed a dog swimming alone in the water and spotted Crawford's unoccupied pontoon boat adrift a short distance away on Forest Lake No. 1.

Washington County law enforcement officers have been searching the water for his body, but had not yet found him Wednesday afternoon.

Forest Lake police have said Crawford was an avid boater and it is unknown how long he may have been missing before the witness noticed the dog and pontoon boat.

In Stearns County, a 16-year-old girl was rescued Tuesday afternoon from Big Watab Lake after losing consciousness when she hit her head on a pontoon boat while swimming.

According to a press release from the Stearns County Sheriff's Office, she was not breathing when several people pulled her from the lake about 4 p.m. and began first aid.

She was in stable condition at St. Cloud Hospital, conscious and speaking with deputies, later that evening.

Katie Humphrey • 952-746-3286