An Aberystwyth University student has told ITV News that water is being pumped from the top of campus, with massive hoses directed downhill towards the National Library of Wales.
More top news
A video obtained by ITV Wales shows a man being detained on a residential street in Newport following a counter-terrorism raid in the city.
A 25-year-old man has been arrested in Newport, South Wales, in connection with the Parsons Green terror attack, Scotland Yard said.
Tata Steel and Thyssen Krupp will formally announce the merger of their European steel operations on Wednesday, ITV News understands.