ANOTHER report of an "unknown substance" found near Pembroke Castle this morning (Monday) is being treated as a hoax.

Police cordoned off the footpath running beneath the castle at around 9am this morning, with officers stationed at each end.

The footpath has now-reopened, and Pembroke Castle remains open to the public.

A police spokesman said Dyfed-Powys Police were responding to a report of an unknown substance found near Wogan Cavern, which was "being treated as linked to an earlier, similar incident".

The spokesman said the discovery was being treated as a hoax.

"An investigation is ongoing and no further information is available at this time," they added.

This is the third time in three weeks that emergency services have been called to the Castle Pond area of Pembroke, following similar reports on July 13 and July 20.