Kane Williamson and Akila Dananjaya have been reported for suspect bowling actions during the first Test between New Zealand and Sri Lanka, the ICC has confirmed.

Sri Lanka ran out comfortable six-wicket winners in Galle, but players on both sides were cited on the match officials' report for possible illegal bowling.

Williamson, an occasional off-spin bowler, sent in just three overs for nine runs in the match, all in the final innings.

Dananjaya, meanwhile, was decisive in his side's victory, with a first-innings five-for putting Sri Lanka in control. He added a more modest 1-84 next time out.

The 25-year-old served a suspension late last year after his bowling action was reported in a Test against England.

Both Williamson and Dananjaya will undergo testing within 14 days but can continue to bowl in the meantime, as the second and final Test begins on Thursday.