GLASGOW'S airport rail link is still on track after new talks about costly engineering works near the terminal, according to officials.

Airport owner BAA and Transport Scotland have been in negotiations over the relocation of a fuel depot to allow the line to be brought into the site.

There had been fears the work would be too expensive and the potential sale of Glasgow Airport would threaten the link, planned to open before 2014.

However, talks have now ended and Transport Minister Stewart Stevenson is considering a report detailing the options.

It's still hoped the new line from Paisley Gilmour Street to a new station at the airport will be completed and ready to take passengers to and from Glasgow Central in time for the Common-wealth Games in 2014.

Talks over the summer have focused on a solution to the fuel depot problem.

BAA Scotland said it expected clarity in the next few weeks.

A spokesman said: "We have done all that has been asked and given assurances we are committed to the link and we have signed a contract to deliver this."

BAA is appealing against a ruling from the Competition Commission to sell either Glasgow or Edinburgh airport, but it ruled out any suggestion of that affecting the rail link.

The spokesman added: "The timeline of any sale would not impact of the link. Even if the appeal is lost it could be two years before any sale. By then work will be well under way."

Tendering for the track and bridges in Paisley has been delayed until the fuel depot issue is resolved.

The cost of moving the tanks is understood to have risen from £5million to £30m.

The total cost of the project is almost £400m after the airport link was combined with re-signalling work in the Paisley area.

A Transport Scotland spokesman said: "Work on capacity improvements on the existing railway line between Glasgow Central and Paisley is already committed and well under way.

"Transport Scotland and BAA have recently concluded discussions in relation to the work in the airport campus."