Subsequent assessment found that the elbow extension in Lyth's bowling action exceeded the 15-degree threshold as defined in the Regulations.
Lyth is ineligible to bowl in ECB competitions until he is able to pass an independent re-assessment of his bowling action.
Lyth bowled only a single over of offspin in Yorkshire's defeat and only two overs in the 2022 Blast, so neither Yorkshire nor Superchargers are likely to be overly disrupted by the ruling.
The suspension follows the process set out in the ECB's Regulations for the Review of Bowlers Reported with a Suspected Illegal Bowling Action.