Three people have been killed in a shooting near a swimming pool in Spalding, police have said.
Police were called to Castle Swimming Pool on Pinchbeck Road around 9am, a spokesman for Lincolnshire Police said.
The suspected gunman is thought to be among the dead.
Scene at Castle Sports Complex, Spalding. Air ambulance, paramedics and police on scene. pic.twitter.com/fX62ZI1rfL
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The police spokesman said: “There is an ongoing police investigation and at this stage we are not looking for anyone else in connection with the incident.
“There is no indication that this is a terrorist related incident and no shots have been fired by police.
"We would urge members of the public to stay away from the area at the present time."
An air ambulance landed at the scene and ambulances and six police cars are also present.