A US tech company says its chief executive has quit after he was apparently caught on a big screen at a Coldplay concert embracing a female co-worker, in a clip that went viral.

The clip showed a man and a woman hugging on a jumbo screen at the arena in Foxborough, Massachusetts, before they abruptly ducked and hid from the camera.

The pair were identified in US media as Mr Byron, a married chief executive of Astronomer, and Kristin Cabot, the firm’s chief people officer.