By: THE ASSOCIATED PRESS

MADISON, Wis. - A medical helicopter has crashed in Wisconsin, killing three people on board.

The dead include a doctor, a nurse and the pilot.

A spokesman at the University of Wisconsin Hospital says the hospital's Med Flight helicopter was returning to Madison Saturday night after dropping off a patient in La Crosse when it crashed.

The spokesman says a second helicopter that serves the hospital has been grounded.

The families of the victims have been notified, but the names were not immediately released.