Khan was reported to the Event Panel after his side’s match against Nepal on Wednesday, which Hong Kong won by 5 wickets at Stormont.
Pursuant to the Regulations, where the Event Panel concludes that the player employs an illegal bowling action, the player shall be immediately suspended from bowling in any international cricket until such time as the player submits himself to an independent assessment of his bowling action conducted by an appointed specialist at an ICC Accredited Testing Centre pursuant to the ICC Standard Action Protocols which concludes that he has remedied his action.
A copy of the ICC Regulations can be found here.