Samuels and Shillingford actions were reported by on-field umpires Richard Kettleborough and Nigel Llong, TV Umpire Vineet Kulkarni and Andy Pycroft.
After their hapless display in the two-match Test series against India, West Indies dealt a further jolt when their offspinners Shane Shillingford and Marlon Samuels were reported with suspected illegal bowling actions at the second Test against India, which ended in Mumbai on Saturday.
Samuels and Shillingford actions were reported by on-field umpires Richard Kettleborough and Nigel Llong, TV Umpire Vineet Kulkarni and Andy Pycroft, the ICC said in a release on Saturday.
Pycroft handed over the copies of the reports to the West Indies team manager after the conclusion of the Test. The umpires' reports have cited concerns over the two bowlers' bowling actions, with particular references to Samuels' "quicker deliveries" and Shillingford's "doosras".
Samuels and Shillingford's bowling actions will now be scrutinised further under the ICC process relating to bowlers reported in Tests, ODIs and T20Is. Clause 2.2 of the ICC regulations, which deal with ICC independent analysis, said the release.
Both the bowlers have previously been reported and suspended from bowling in international cricket after their bowling actions were found to be illegal. They were, however, allowed to resume bowling in international cricket after they underwent remedial work on their bowling actions and further testing.
Samuels was reported in February 2008 and resumed bowling in international cricket in September 2011, while Shillingford was reported in November 2010 and resumed bowling in June 2011.