COUNCILLORS are puzzled after an envelope containing £500 was left in their town hall.

Civic leaders at Thornaby Town Hall believe the money may have been left by a mystery benefactor.

The envelope appeared on Monday, June 2. The council banked it for safekeeping three days later. If the money is a donation, council leaders said they wanted to thank the benefactor personally.

Deputy Mayor Councillor John Lynch said: "It is not every day that £500 is found lying around and we are completely baffled as to what the money is actually for.

"If it is a donation we would very much like to extend a proper thank you to the person who left it and discuss how it should be used.

"We have a meeting at 7pm on Monday, June 30, and it would be wonderful if the mystery person could come along so we can thank them personally."