A wall of what is believed to be firefighting foam has been carried down the River Thames today, killing hundreds of fish in the upper reaches of the river.
The Environment Agency says it entered the river via a brook at Fairford, from which it was carried into the Colne and then the Thames upstream of Lechlade, Glos.
Dead fish have been reported in Lechlade Wierpool - the highest on the river - and downstream at Buscot and Radcot.
Pictures show the foam several feet high outside the Trout Inn, at Lechlade.
While the EA has declined to reveal the source of the foam, it is believed to have come from the USAF base at Fairford, where flying tankers and other American military aircraft are based.
Click here for BBC report.
