Three men have been arrested on suspicion of firearms offences after armed police were called to a house in Pownall Gardens, Hounslow, this afternoon.
The men, all in their 20s, are now in custody pending further enquiries. A police spokeswoman said she was not aware of any firearms having been found at the property.
She said police were called to the address following an alleged assault in Hounslow town centre earlier this afternoon, at around 1.15pm.
She added that both matters were now being dealt with by officers at Hounslow Police.