Hundreds of protesters turned out today to demonstrate against sewage being dumped in the River Thames. 

At least 500 people joined the protest on Port Meadow which saw Oxford MP Layla Moran speak to the crowd. 

Protesters came prepared with a range of colourful and creative signs, as well as inflatable poo-emojis and poo costumes. 

These are some of the best protest signs from the event today:

Oxford Mail: Matthew Hart holds up a Jaws-style sign Matthew Hart holds up a Jaws-style sign

Matthew Hart's holds his Jaws-inspired placard which takes the famous movie poster and gives it a new look. 

The well-known image is famous for showing a shark swimming up to eat a swimmer, in this case the shark has been replaced with a rather terrifying pile of feaces. 

The sign asks: 'When will it be safe to go back in the water?'

Oxford Mail: Penny Wainwright holds two different signs Penny Wainwright holds two different signs

Penny Wainwright came along with two signs to the protest. 

The sign on in her right hand replaces H2O, the chemical symbol for water, with H2Poo - owing to the sewage being released into the river. 

Oxford Mail: These two signs get straight to the pointThese two signs get straight to the point

These signs get straight to the point with the slogan 'birds not turds', emphasising the enviromental message behind the protest. 

Oxford Mail:

A very simple sign but Dianne Parkes message is given a finishing touch with the addition of a giant, inflatable poo. 

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