How a power failure affected BBC Wales viewers and listeners

(Updated)  BBC television and radio services for Wales have been disrupted by a power cut, resulting in BBC Northern Ireland taking over the airwaves and S4C missing out on its main evening news.

Power went down at BBC Cymru Wales HQ in Cardiff (pictured above) at around 6:15pm on Friday night, causing instant disruption to broadcasts

Wales Today was one of the first high profile casualties of the power cut, so when the BBC News at Six with Clive Myrie came to an end and Wales Today was due to start, a holding screen went to air while BBC One Wales was switched over to BBC One Northern Ireland, with viewers joining Newsline from Belfast.

This holding screen was the first sign that things were not well in Wales

The 7:30pm edition of Weatherman Walking on BBC One Wales also couldn't go on air with BBC Northern Ireland's announcer apologising to affected viewers, with the Wales opt-out replaced by the main BBC One national schedule.

BBC One Wales was able to restore its output during EastEnders, but controlled by BBC Northern Ireland until closedown. Wales Today was able to go to air at 10:25pm, albeit still in recovery mode with paper scripts.

Meanwhile, S4C had to switch to filler programming, after it was confirmed that there would be no news bulletins from BBC Cymru Wales on S4C as a result of the power failure.

The day's main Newyddion bulletin was due to go out at its new regular Friday night slot of 7:30pm, instead of 9pm, thanks to live sport taking over the Friday night schedules on the Welsh-language channel.

BBC Two Wales was switched to the main network version of BBC Two, from London.

BBC Radio services for Wales were also interrupted, with programmes going off air. BBC Radio Wales has since resorted to taped programming. BBC Radio Cymru has switched to broadcasting from Bangor, according to BBC Wales.

At around midnight, BBC Wales issued a statement saying:
"Following a power outage, BBC Wales television and radio services have now been restored. Our technology staff are continuing to work to ensure that there is no further disruption to the services. We apologise for the problems and thank everyone for their patience."

It's been reported that the company responsible for electricity distribution in the area - Western Power Distribution - was not aware of any power cuts in Llandaff, Cardiff, which may point to a local issue.

Last updated at 20:37 16/8 and 09:02 17/8