World number one golfer Tiger Woods is to marry his Swedish girlfriend Elin Nordengren, a 23-year-old former model, a Swedish newspaper reported on Friday.

Woods, 27, popped the question after the President's Cup golf competition in South Africa, the daily Expressen said. She said "Yes" and called her father, telling him: "Dad, we are engaged."

"She called me yesterday morning and was incredibly happy," Elin's father, Thomas Nordengren, told Expressen.

Woods and Elin, his girlfriend of two years, had spent a few days in the romantic setting of South Africa's Shamwari game reserve near Port Elizabeth, where they cooked their meals over an open campfire.

The wedding is to take place in Sweden but the couple are in no rush, Expressen said, quoting unnamed friends of the pair, who have their home in Orlando, Florida.

Tiger met Elin when she was working as a nanny to the children of Swedish professional golfer Jesper Parnevik.