LONDON (AP) — Adele has apologized after a fan was injured at one of her concerts in Scotland.

The incident happened Friday night at the SSE Hydro venue in Glasgow when a chain fell from production rigging and hit a woman in the audience. The fan was treated at the scene and hospitalized as a precaution.

Adele tweeted "I'm so sorry to hear that someone got hurt at my show tonight. It's being investigated to ensure it won't happen again."

Officials say the 13,000-seat venue is being checked to make sure it's safe for the British singer's Saturday show.

Adele's "25" set a first-week sales record in November, selling over 2.4 million albums and the music video for her single "Hello" took only 87 days to hit 1 billion views on YouTube.