Attempts by groups in the US to block the sale of car giant Chrysler to Italian automaker Fiat have failed.
Parties interested in delaying the move, including consumer groups and pension plans, took their case to the US Supreme Court after an appeal court in New York had earlier approved the sale.
A temporary delay was ordered so the case court be reviewed, but just over 24 hours later the highest court in the US cleared the way for both car makers to complete their deal.
Previously, the Obama administration - along with Chrysler and Fiat - expressed concern that the Supreme Court's intervention could scuttle the sale.
Opponents of the move include three pension plans from Indiana, a number of consumer groups and individuals with product-related lawsuits.
Justifying its decision, the court explained that to obtain a delay, or stay, at least four of the nine justices must find that the issue raised is serious enough to warrant hearing a full appeal and that a majority of the court concludes the lower court decision was wrong.
The court added: "The applicants have not carried that burden."
© Press Association 2009