CELTIC fans again protested against the potential appointment of Bernard Higgins today.

A number of Celtic supports’ clubs have united to warn the club they will not engage with Bernard Higgins if he is appointed in a security role.

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 last week.

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.

The open letter, signed by the likes of the Celtic Trust, Affiliation of Registered CSCs and the Green Brigade, claimed Higgins had overseen a change in football policing policy including what they labelled “intrusive surveillance”.

In fresh protests today fans unfurled a flag at full-time which read "Bernard Higgins is the threat to health and safety".

Supporters also took part in a 'sit in' protest after today's win over Aberdeen.