Last night we were sent an unbelievable video of what appears to be a shark swimming in the River Tyne in Newcastle.... 

(Shark Clip: "SWNS TV" (

There's yet to be a confirmed sighting but Marine Biology experts think it could have got lost because of all the unusually foggy weather we've been having. 

If anyone else happens to spot anything send your pictures to us on twitter @metroradionews using #sharkwatch