South Africa spinner Aaron Phangiso's participation in this month's ICC World Twenty20 is in doubt after tests proved his action is currently illegal.

Phangiso, who previously played in Norfolk for Downham Town, was reported for a suspected illegal action in a domestic limited-overs match last week, after which tests in Pretoria concluded that all the left-arm slow bowler's deliveries exceeded the maximum 15 degrees of tolerance to straighten the arm in delivery under ICC regulations.

The 32-year-old, who helped Downham win the Norfolk Cricket Alliance Premier Division title in 2008, is therefore suspended from bowling and will take no part in South Africa's two Twenty20 internationals against Australia, before they leave for the global tournament in India.

If he is to travel too, Phangiso must prove remedial work on his action has taken effect when he undergoes a second round of tests next Monday.

South Africa meet England in their opening game on 18 March.