A road in Harpenden will be closed for days after an "irresponsible builder" poured concrete into a sewer.

There will be disruptions on the B652 Station Road will be closed for "a few days" as Thames Water replaces a pipe, which has been blocked with concrete.

Stuart White, spokesman for Thames Water, said: "This disruption has been caused by the actions of one rogue builder selfishly and irresponsibly pouring concrete into our sewers.

"Normally blockages are caused by fat, oil and grease building up in the sewer but unfortunately in this case it’s concrete, so we can’t just jet it through.

"It’s in there and it’s set to the pipe, so we need to remove the pipe and replace it with a new one.

"This is very frustrating, a complete waste of our time, and not the first time damage has been caused by private contractors pouring concrete into our sewers.

"Our main priority is to fix the problem and restore normal service as soon as possible, investigate and then reclaim the costs from whoever is responsible."