Fernando Alonso "not worried" by Korean Grand Prix

Ferrari's Fernando Alonso has insisted that he is not worried after finishing fourth in qualifying for the Korean Grand Prix.

The Spaniard set the fourth-fastest time behind McLaren's Lewis Hamilton and the Red Bull pairing of Sebastian Vettel and Mark Webber, who is on pole position.

"We need to use our good points, hide a little bit our weakness, which is qualifying, and today I think we did a good qualifying," Alonso told reporters.

"But I'm not worried for tomorrow and I'm not worried for the next five races. I think it's going to be tight."

Alonso won the inaugural race at the Korea International Circuit two years ago.