Pop Francis trips in Mass in poland

Pope Francis tripped on a step and fell at the start of an outdoor Mass in Krakow, Poland, as he was blessing the altar on Thursday.

The 79-year-old was quickly helped up by aides and did not appear to be hurt. He then continued the Mass and read his homily as normal.

The Pope suffers from sciatica, a medical condition in which pain sometimes shoots down the leg from the lower back, which may have been a factor in the fall.