Update 2 p.m.
The standoff at the Graduate Hotel has ended, with police taking the suspect into custody.
The most remarkable development of Tuesday morning came courtesy of KSTP, whose reporter Ryan Raiche spoke with the suspect after he called into the newsroom.
Raiche reports he was called a second time just before he was taken into custody.
Update 1:30 p.m.
The standoff at the Graduate Hotel continues, with the suspect seen straddling the room's window ledge as authorities take efforts to bring the situation to a close.
Update 11:30 a.m.
Several witnesses in the area of the Graduate Hotel have been posting images from the scene, with SWAT teams and unmarked police cars seen in the area.
One of the hotel rooms towards the top of the hotel has a smashed window, seemingly caused when someone inside threw a microwave out and to the ground.
Those working in nearby buildings have been following proceedings from office windows.
MPR reports that police have been firing tear gas from a SWAT vehicle into the room.
The suspect was earlier said to be in the hotel room with another individual – it's not clear if that other person is still in there.
The standoff between police and a suspect in a hotel room on the University of Minnesota campus started in the early hours of Monday morning and has continued into Tuesday.
The University of Minnesota says that police are still situated at the Graduate Hotel at 615 Washington Avenue SE, formerly the Commons Hotel, as of Tuesday morning.
The suspect was initially in a room with two other individuals, one of whom – a woman – was released unharmed on Monday evening.
But the other is still in there, and with police officers continuing to communicate with the suspect, there remains closures in place around the hotel.
The safety perimeter has been reduced since Monday, but the U's Recreation and Wellness Center remains closed, as does the parking lot to the north of the Graduate Hotel, while sections Scholars Walk and Beacon Street are still shut down.
The hotel is still operating as usual, aside from the floor where the standoff is happening.
Police have not said if the man is armed, with the Associated Press reporting there's a warrant out for an arrest for a nonviolent "white collar" crime in Arizona.