According to social media reports, the Chinese coastguard may have been detected off the coast of Kerry.
Yesterday, a vessel, purporting to be from that country's coastguard, was apparently tracked through an online app - Marine Traffic
This app tracks marine infrastructure across the world.
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The tracking was posted on Twitter.
Radio Kerry News has contacted the Irish Naval Services and Valentia Coast Guard for comment - both were unaware of any Chinese activity in Irish waters.