THESE disturbing images show the extreme toll exorcism rituals take on Roman Catholics in Mexico City.
The stark images show believers with their faces and bodies contorted in pain as pastors and preachers (known as 'exorcistas') seek to cast demons out of their bodies.Sometimes possessed people are tied down to prevent harm to others and themselves
They were taken at the Church of the Divine Saviour in of Mexico City.
Exorcism is an ancient religious technique of evicting spirits from a person who is believed to act as a host for evil.
Although the formal catholic rite of exorcism is rarely seen and must be only conducted by a designated priest, the exorcistas still play their trade among the faithful.
They use their charisma and religious chanting to command the evil spirit to depart a victim's mind and body, usually invoking Jesus Christ or God to intervene in favour of a possessed person.
Earlier this week a group of children were traumatised by witnessing an exorcism during a trip to an Orthodox convent in the Urals region of Russia, according to their parents.
The 11-year-old pupils from a school in Yekaterinburg were said to have been startled to hear a girl yelping and shouting with a male voice at the convent in Sredneuralsk.
One father told the website Znak that the children had seen a real exorcism on the visit with their teachers, which was arranged as part of their religious studies.
"What they described beggared belief," he said. "It was demonstrated to them how a priest drove demons from a girl aged about 12.
"The children didn't understand anything and were very frightened."