Rangers have drawn 0-0 with Celtic in the Old Firm derby at Ibrox in Glasgow.
Rangers goalkeeper Allan McGregor saved a late penalty from Celtic striker Georgios Samaras to keep a clean sheet and stay top of the Scottish Premier League with 81 points from 34 games.
Celtic are a point behind from 33 and need only win their remaining five matches to win the league.
An extra 1,000 police officers were on the streets of Glasgow to deal with any potential violence.
Celtic boss Neil Lennon is in the spotlight after parcel bombs were sent to him.