A spokesman for Northumbria Police say they believe two teenage girls have gone into the river.
Police, fire and ambulance services are continuing to carry out searches.
More top news
The Met Office have issued a yellow "Be Aware" warning of strong winds for the region for Sunday into Monday
Emma Jesson brings you Saturday night's forecast
Christmas Eve could be rather frosty and at present, Christmas Day looks like being cold and clear with one or two wintry showers