Pictured: Police and fire services at Pembroke Castle, west Wales, UK. Friday 13 July 2018<br />
Re: Pembroke Castle is closed while an unknown package is investigated by police.<br />
Officers were called to Castle Terrace at around 1pm after the discovery and the castle was shut for the day.<br />
Dyfed Powys Police said it does not believe there is a risk to the public.<br />
A spokesman said "precautions are being taken" after an item which potentially contained an unknown substance was found.<br />
"There will be a high presence of emergency services as the item is investigated," he added.