A Baltimore police officer who was charged Friday in the beating death of his infant son is being held without bail in the Howard County Detention Center.

Carl Morris Jr., 32, a five-year member of the Baltimore police department, is being held on first-degree murder and child abuse charges, county police said.

Morris, of the 6400 block of Barchink Place in Columbia, turned himself in to his lawyer Friday after a warrant had been issued for his arrest. His lawyer informed authorities.

Christopher Morris, 19 months old, died Jan. 20 after paramedics found him at his home unconscious and with bruises on his forehead and abdomen. Christopher was taken to Johns Hopkins Hospital, where he died a short time later. Morris told paramedics that his son had fallen down stairs. The state medical examiner found that the child died of blunt force trauma to the abdomen and ruled the death a homicide.

The arrest Friday was the second in three months for the patrol officer, who worked the city's Southwestern District. In October, he was arrested by Prince George's County police and charged with battery, theft, destruction of property and carrying a weapon openly, police said.

Dennis Hill, a spokesman for the Baltimore police department, said Morris was suspended from the department without pay in December because of the Prince George's arrest, and, if convicted of a felony, would be fired.