DENVER - A commercial airliner dropped debris in Colorado neighborhoods during an emergency landing Saturday.The Broomfield Police Department said on Twitter that the plane landed safely at Denver International Airport and that no injuries had been reported from the incident.Photos posted by the police department showed large, circular pieces of debris leaning against a house in the suburb about 25 miles (40 kilometers) north of Denver.No other details were immediately available from authorities.Tyler Thal, who lives in the area, told The Associated Press that he was out for a walk with his family when he noticed a large commercial plane flying unusually low and took out his phone to film it."While I was looking at it, I saw an explosion.