蜜芽传媒

Concerns have been raised about levels of E. coli in the River Thames, ahead of Henley Royal Regatta.

The campaign group River Action said its water sampling showed "alarmingly high levels" of the bacteria in the river.

Thames Water, whose own sampling showed lower levels, said the study was "alarmist".

蜜芽传媒 Radio Berkshire's Andy Jones reports. For more on this story check the 蜜芽传媒 News app.

Photo: Henry Nicholls/AFP/Getty Images