David Duval holds the laed in the British Open. The American, at eight under par, is just one shot ahead of Sweden's Nicals Fasth.

There is now a four-way tie at the top of the keenly-contested British Open leaderboard.

There is a three-way tie for the lead at the British Open. Alex Cejka, Greg Owen and Jesper Parvenik are all on seven under par.

Alex Cejka has taken over the ever-changing top spot on the British Open leaderboard.

Colin Montgomerie has moved back into the lead in the British Open.

England's Greg Owen has taken over the lead in the British Open.

Joe Ogilvie is tied with Colin Montgomerie at the head of the British Open pack.

Colin Montgomerie is back in the lead - by just one shot - at the British Open.

The final few rounds of day one are being played at the British Open.

Quotes of the day, day one:

Colin Montgomerie has finished today's round at the British Open on six under par.