CELTIC fans have once again protested against the potential appointment of Bernard Higgins at Parkhead.

Police Scotland assistant chief constable Higgins is understood to have been lined up by the club for a senior security position.

Chairman Ian Bankier refused to rule out his appointment when challenged at the club’s annual general meeting.

Now 135 fan organisations, including representative bodies, supporters’ clubs and podcasts, have signed a letter to acting chief executive Michael Nicholson warning of their response if he is appointed.

Fans today again protested with a crowd display for the club's game against Dundee United at Tannadice.

Celtic Way:

Supporters held up a banner that read "All Celts against Bernard". Others held up flags with Higgins' face encorporated onto a no entry sign.

Fans have protested against the potential appointment during recent games.

There was a silent protest for the first half hour of a goalless Celtic Park draw with Livingston, with no songs sung during that time.

And kick-off in Celtic’s win at Dundee was disrupted when supporters threw dozens of tennis balls onto the pitch.