Heavily armed gunman has killed himself after an eight-hour siege in central Queensland.

Heavily armed gunman has killed himself after an eight-hour siege in central Queensland.Police have refused to confirm if the man opened fire on a marked police car while holed up in a house in the coal mining town of Moranbah.
Officers say the man broke into the home on Monday afternoon and while alone inside fired a weapon several times.Negotiators were unable to talk him out and he shot himself, reportedly in front of officers, about 10pm (AEST).The incident will be investigated by the Ethical Standards Command.A report is being prepared for the coroner.During the drama, police prevented some residents from returning home, while others were instructed to stay locked inside their houses.