Hillingdon Council and campaign group HS2 Action Alliance have lost their latest legal challenge against the Government over the high speed rail line.

In June, the council and HS2AA brought a fresh judicial review challenge to the High Court, challenging the decision by transport secretary Patrick McLoughlin to issue safeguarding directions without first undertaking a Strategic Environmental Assessment.

Safeguarding is designed to protect land which has been earmarked for major infrastructure, in this case HS2, from conflicting developments which might otherwise occur.

Mr Justice Lindblom gave his judgment today, Wednesday August 6, at London's High Court, dismissing all counts of the challenge, but said: "This is not the first claim for judicial review in which the Government’s promotion of HS2 has been challenged. And it may not be the last.

"HS2, if it is built, will transform the environment along its route. On any view, its impacts on the environment will be significant."

Speaking ahead of the hearing in June, council leader Ray Puddifoot said: "Despite the Government telling us that resistance is futile, we will continue our fight against this flawed plan, however long it takes. This is not a done deal and we will continue to challenge the Government.

"We also remain committed to assisting residents groups and local businesses and will continue to help wherever possible with the resources and support people need."