People in Aberystwyth have felt tremors from a suspected sonic boom this lunchtime.
Owain Meredith from ITV News said it happened at around 1310, and the room shock with what initially sounded like an explosion.
He said two jets were seen flying overhead.
Sonic boom in Aberystwyth, shook the office and frightened the seagulls.
#sonicboom in Aberystwyth.....not enjoyable at all! Thought it was an earthquake at first.
Big Bang Aberystwyth. Lol. Scary!! #SonicBoom