Debris in the waters of Bermuda has provided Team New Zealand with another setback just days out from the start of the America's Cup.
The Kiwi syndicate was forced to cut short their practice session, with media reports saying the crew had felt debris strike one of their boat's expensive foils.
They pulled out of a race against British outfit BAR as a precaution, although there were no reports of damage.
The curtailed session came two days after returning to the water, having spend four days repairing their AC50 catamaran following a pre-start collision with the same BAR rivals.
The last of six syndicates to arrive in Bermuda, in early May, Team NZ have encountered other problems including a broken rudder.
They have nevertheless been pleased with their speed, having had the better of Team France and BAR in practice jousts.