Police are investigating a double stabbing at a Miami apartment that left one man dead.

Miami police said they were called to a stabbing at 1559 N. River Drive about 9:30 a.m. When officers arrived, they found a man and a woman had been stabbed.

Alfonso Pabon, 65, was pronounced dead at the scene. Maria Riveria, 65, was taken to Jackson Memorial Hospital's Ryder Trauma Center, where she was listed in critical condition.

Police said a motive for the stabbing was not immediately known.