Celtic manager Neil Lennon and two high-profile supporters of the Scottish Premier League soccer club were intended recipients of parcel bombs, police said on Tuesday.
In-form striker Kenny Miller scored twice as Rangers staged a stirring second-half fightback to beat Scottish Premier League rivals Celtic 3-1 on Sunday.
Honduras defender Emilio Izaguirre has joined Celtic for an undisclosed fee, the Scottish Premier League club said on Wednesday.
Celtic beat the Seattle Sounders 2-1 Sunday to claim the first win of their North American Tour.
Ireland skipper Robbie Keane left Tottenham Hotspur for Celtic on loan, a year after rejoining Spurs from a short-lived spell at Liverpool.
Celtic manager Tony Mowbray says he is looking forward to seeing his team back in action against Falkirk on Saturday after recent postponements due to the wintry weather.
Rangers maintained their seven-point lead over Celtic at the top of the Scottish Premier League with a 1-1 draw against their Glasgow neighbours at Celtic Park on Sunday.
England`s Premier League clubs rejected a proposal to admit Scottish teams Rangers and Celtic into their competition on Thursday.
Scottish club Celtic look set to sign China captain Zheng Zhi this week and further boost their Asian contingent after last week`s capture of promising young Korean Ki Sung-yong.
South Korean side FC Seoul have knocked back a reported USD2.9 million (1.78 million pound) bid from Celtic for promising midfielder Ki Sung-yong, saying the transfer was "non-negotiable" at the moment.
British clubs Celtic and Arsenal will meet each other for a place in the Champions League group stage after being drawn together in the final qualifying round on Friday.
Day in Pics: 2nd September
Showbiz World - September 2, 2014
Celebrities welcome Ganapati