Leicestershire Police have confirmed they're in attendance at a property in Thurmaston at a 'firearms' incident.
Police say they were called to a property in Manston Close at 5.11pm after reports of a gun being fired.
A man is thought to have run back inside a house on the street and locked himself in.
Specialist firearms officers are negotiating with the man who is believed to be alone.
People living in the area have been advised to stay indoors while police deal with the situation, and a number or roads have been closed.