The band kicked off the iNNOCENCE + eXPERIENCE Tour at the Rogers Arena in Vancouver, but the first night was marred by drama when the guitarist toppled off the side of the catwalk during the encore.
Video footage taken at the event shows The Edge walking along the stage while playing I Still Haven't Found What I'm Looking For without watching where he is going, and he accidentally steps off the side and falls into the pit in front of the audience.
Security guards are seen rushing to help the fallen rocker, while frontman Bono continues singing.
After the accident, The Edge posted a picture of his arm injuries on his Instagram.com page with the caption, "Didn't see the edge, I'm ok!! #U2ieTour."