An otter seen swimming in a Dorset river with a plastic tie caught around its neck has managed to free itself.
The animal, in the River Stour at Blandford, was put under observation by volunteers amid fears the tie could become caught causing it to drown.
The UK Wild Otter Trust (UKWOT) said the cable ties moved up the otters neck and were then "shaken off".
The trust said its volunteers later found a number of ties by the river where works had been carried out.
Dave Webb, from the trust, said: "They are very similar to the ones that were on the otter - we will be speaking with the contractors to ensure that any debris is cleared away."
The incident has led to a poster campaign being launched by the UKWOT urging people visiting rivers and lakes not to leave litter.