Anyone with any information about the incident should contact Det Sgt Homes via the 24-hour Police Enquiry Centre on 101.
If you don't want to speak directly to the police, you can contact the independent charity Crimestoppers anonymously on 0800 555 111 or online at crimestoppers-uk.org. No personal details are taken, information is not traced or recorded and you will not go to court.
More top news
Wednesday morning's weather with Simon Parkin
Simon's Blog - All Creatures Great And Small!
Tuesday night's weather with Simon Parkin