A police investigation is underway after a 'hate' letter was sent to a Rotherham mosque.
The letter was sent to the Jamia Masjid in College Road, Masbrough, yesterday.
.A spokesman for the North East Counter Terrorism Unit said: "Police received a report of a malicious communication which was received on Thursday, February 16 in Rotherham.
"An investigation is underway with ongoing enquiries to identify the origin.
"We are looking into the possibility that the communication is linked to a number of suspicious packages reported at locations in London and South Yorkshire last year."