After which incident was the Non-Cooperation movement withdrawn by Mahatma Gandhi?

Mahatma Gandhi abruptly called off the Non-Cooperation Movement in February 1922 following the Chauri Chaura incident in Gorakhpur district (modern Uttar Pradesh). During this event, a violent mob set fire to a police station, leading to the death of 22 policemen, which violated Gandhi's strict principle of non-violence (Ahimsa).