A 20-year-old woman was arrested in Sheffield on suspicion of firearm offences after homes were searched on the city’s Manor estate and Treeton in Rotherham.
Armed officers and a number of police squad cars were spotted in Treeton yesterday morning as part of the pre-planned raids.
The police helicopter was also involved in the operation.
A 20-year-old woman was later arrested in the Manor area.
She has been granted bail.