Umno members who took part in the Taman Medan church protest have been hauled up by the party's disciplinary board and will face action if they are found to have breached party discipline.
Party secretary-general Datuk Seri Tengku Adnan Tengku Mansor said that "five or so members" from the party's Petaling Jaya Selatan division were issued with show cause letters last week.
"We want to hear from them on what happened that day and why were they involved. They have been given 14 days to reply," he said when contacted.
Asked if discplinary action, including sacking, would be taken, Tengku Adnan said that would be up to the disciplinary board to decide.
On April 19, about 50 people staged a protest against the church for putting up the cross on its facade, claiming the act was a challenge to Islam. The church removed the cross.
Tengku Adnan said Umno viewed its members' involvement in the incident seriously as the party was a partner in a multi-racial and multi-religious political coalition.
In a related development, police have rubbished a report by an online portal that Taman Lindungan Jaya Umno branch leader Datuk Abdullah Abu Bakar was cleared of any wrongdoing in the protest.
Selangor police chief Datuk Abdul Samah Mat said it was premature to make such an assumption as the investigation papers had yet to be handed over to the Attorney-General's Chambers.
The online portal reported that Abdullah, the brother of Inspector-General of Police Tan Sri Khalid Abu Bakar, had been cleared on the grounds that he was there to mediate between the protesters and church officials.
MCA Religious Harmony Bureau chairman Datuk Seri Ti Lian Ker called on the Attorney-General's Chambers to charge the offenders who had violated the law.
"We hope to see a follow through of this case towards a satisfactory ending. Action against these offenders will prove that the AGC has discharged its duty without fear or favour."