Sir Paul McCartney believes that Heather Mills is a "gold-digger", the Sunday Mirror claims today.

The former Beatle is apparently furious that his estranged wife has rejected a £30 million divorce offer, amid rumours that she is now pushing for a figure closer to £200 million.

A close friend told the newspaper, "Paul believes Heather wants as much money as she can get. He thinks she is proving herself to be nothing better than a gold-digger.

"Paul is a reasonable guy who doesn't like confrontation. He wanted to keep the divorce quick and amicable for the sake of Beatrice - but feels Heather is being difficult and trying to drag things out.

"In his eyes they had agreed they wanted to make the divorce quick and painless and a settlement was virtually in place - but then Heather started getting unreasonable because she wanted more money. She wants as much as she can."

Yesterday it was revealed that McCartney had blamed Heather's "unreasonable behaviour" for their marriage split.