Published Thursday, 28 July 2011
Sinn Féin MLA John O'Dowd said Orangemen marched from Drumcree Church towards the nationalist Ballyoran estate on Wednesday night and only turned back when police arrived at the scene.
The organisation has been banned for years from parading through the district.
Mr O'Dowd condemned the Order for its actions and said: "There was no PSNI presence at the church - the Orange Order seemed to take this as a signal to take part in an illegal parade down Garvaghy Road."
In a statement released on Thursday morning, the PSNI's Area Commander Chief Inspector Anthony McNally responded by saying: "Enquiries are now underway into this incident and at this stage we are working to establish whether the Commission's determination was breached."
The statement continued: "Police have a responsibility to ensure that Parade Commission determinations are adhered to.
"Unfortunately, we were delayed in attending the parade last night, however everyone has a responsibility to uphold the law and anyone who breaks the law must be held accountable.
"Every member of the community in Portadown also has a responsibility to contribute to their community and ensure that it is inclusive and peaceful and that everyone's beliefs and rights are respected."
A spokesman for the Order said it would be making no comment until it knew the full facts of what happened.