U.S. investors may be involved in Saab deal-media

STOCKHOLM, June 12 (Reuters) - U.S. investors may be among those backing Swedish luxury carmaker Koenigsegg in a purchase of General Motors' loss making unit Saab, a Swedish news agency reported on Friday.

A source told Reuters this week that Swedish carmaker Saab has struck a preliminary deal with Koenigsegg to take over the loss-making GM GMGMQ.PK brand.

"According to sources Koenigsegg has the backing of Norwegian and U.S. investors," Swedish news agency E24 said on its website.

Saab Automobile, which was put up for sale by its now bankrupt U.S parent earlier this year, had been in talks with two or three bidders in the past weeks and has declined to comment on reports that it had signed a preliminary deal with Koenigsegg.