PHOTOS: Pope Francis Slips During Mass

Images of Pope Francis stumbling down a step on an altar in Poland have emerged courtesy of Polish media.

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The 79 year-old quickly got back to his feet as he was helped by altar servers.

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He seemed not to be injured as he addressed a crowd at the Jasna Gora monastery in Czestochowa, Poland.

Security was tight at the venue following a series of attacks in Europe.

Both army and police personnel were seen to be on roads leading to the city.

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