Both incidents have caused distress and outrage not only in our local communities, but across South Yorkshire.

It is simply intolerable and I want to reassure the local community that we are determined to find those responsible.

I understand that people will be concerned and we are exploring a number of lines of enquiry to confirm that these incidents are linked.

We must keep an open mind in this early stage of the investigation and this is where any information that you hold, however small, could prove significant to finding out who did this.

Please, if you saw anything suspicious in the area or have heard anyone discussing this matter locally, get in touch.