Chinese fishing vessels have ventured into Argentine waters in the past; this time Argentina sank one,

Shots fired: Argentina sinks Chinese vessel fishing illegally

In a high-seas chase, a coast guard vessel on Monday pursued the fishing vessel Lu Yan Yuan Yu 010 toward international waters, firing warning shots across the Chinese boat’s bow as it attempted to raise the crew by radio.
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Four crewmen were rescued by the coast guard while others were picked up by another Chinese vessel shadowing the pursuit.

Emphasis added,
China demands investigation into sinking of fishing boat by Argentina’s coastguard.Argentina says trawler was operating without permission and was chased, with warning shots fired, before it tried to ram coastguard vessel

“On several occasions the offending ship performed manoeuvres designed to force a collision with the coastguard vessel, putting at risk not only its own crew but coastguard personnel, who were then ordered to shoot parts of the vessel,” Argentina’s coastguard said in a statement.

This is not an isolated incident.