Shocking footage captures gardens that collapsed into a river after a landslide.

A substantial chunk of two family's land fell into the River Tawe at around 4:30am on Thursday in Ystradgynlais near Powys in Wales.

Photos and videos taken by a local resident reveal a large part of gardens, along with debris and a crumbling boundary wall in the river.

Catrin Phillips took the footage.

They explained: "The river wall has been undercutting for years and the residents have been seeking help from a number of authorities to no avail. "

"I know they have had a number of sink holes appearing in their gardens too."

"It was inevitable that it was going to fall, it was just a matter of time unfortunately for the homeowners - it's heartbreaking for them."

Though they said it was lucky to have collapsed when it did - as if it would have been during the day, more than just the garden could have been affected.

They added: "It's just fortunate that it happened at 04:30 and not during the day time. "

"Residents are often in their gardens and local people are often down by the river with their children and dogs. "

"The outcome could have been very different had it been during daytime"."

The post was shared on a community group online, where locals were quick to comment.

One said: "Thinking of the residents who have been fighting with Powys and Welsh Water for over 10 years to build a new wall. "

"Maybe now one of them will take responsibility! It’s just too bad this had to happen to them."

Another commented: "It was actually 4.30 that's my house and half the garden went with it, perhaps we'll get some help now, the authorities were informed it was moving about 4 weeks ago & they didn't even get back to us!"."

Powys County Council said: "Powys County Council was made aware of a wall collapse on a section of the River Tawe in Ystradgynlais this morning and local officers attended to assess the situation. "

"The River Tawe is designated as a main river and therefore the lead authority in this instance would be Natural Resources Wales. "

"We have passed details on to them and they should be contacted for further information."

NRW operations manager for land and assets, Neil Stoddart added: "We are aware that a part of a retaining wall has collapsed into the river at Ystradgynlais and we sympathise with the effected landowner. "

"Our engineers will visit the area to investigate and to assess any added flood risk caused by the incident."