Tesco's US operation has seen off an attempt to get an injunction on the construction of its distribution centre in Riverside, California.

The legal team behind a mystery group called Health First tried to halt work at the site, claiming planning permission had been approved without proper consideration of the depot's environmental impact. Its case was rejected.

But a second injunction case will be heard in April, while a full trial before a Californian court will begin in June. At that point the judge could order Tesco to pull the building down. "Tesco is carrying on with the construction at its own risk," said one lawyer.

But Tesco said: "Challenges of this nature, using the state's environmental review process as the basis, are common in California and we have every reason to believe the decision will be upheld."