A controversial pipeline being built across south Wales to Gloucestershire is facing a further setback.

A High Court judge has struck down a decision to grant planning permission for a terminus being built in Cilfrew, near Neath, as "unlawful".

The construction of the pipe to transport liquefied natural gas (LNG) from Milford Haven has already been disrupted by environmental protesters.

The 190-mile (306km) pipe will provide 20% of the UK's energy supply.

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UK's energy network operator National Grid has declared force majeure on contracts it has with gas companies to use a new gas pipeline from two new import terminals in Wales, the company said on Tuesday.

The company said in a statement that planning problems on part of the project to link new liquefied natural gas terminals at Milford Haven to the rest of the grid could reduce the amount of transport capacity available to shippers when the terminals open next winter.

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A planning row could hit the capacity of a 190-mile pipeline being built across south Wales, the National Grid has warned.

Construction of the liquefied natural gas (LNG) pipe from Milford Haven to Gloucestershire has already been disrupted by environmental campaigners.

But now a delay in planning permission for a pipe terminus at Cilfrew, near Neath, is causing further problems.

National Grid said it was still assessing the full impact on supply.

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