Ecuadorian police broke into Mexico's embassy, sparking outrage. Why is this such a big deal?

MEXICO CITY (AP) — Diplomatic relations between Mexico and Ecuador dramatically imploded after Ecuadorian police burst into Mexico’s embassy in Quito and arrested Jorge Glas, Ecuador’s former vice president.

Glas, arrested late Friday, had been convicted on charges of bribery and corruption and remains under investigation for other potential crimes. Following the arrest, leaders from across the Americas voiced outrage at the incident and Mexico’s president announced he was breaking diplomatic ties with Ecuador.

But in a region that’s no stranger to political explosions, what has provoked such fierce outrage?

International law experts and leaders across the region have said that the move violated long-established international laws that few rulers have dared to breach. It’s almost an unprecedented act. To date, there are only a tiny handful of cases of raids on embassies on the books.

https://apnews.com/article/mexico-ecuador-jorge-glas-diplomatic-immunity-embassy-c888b82d614f91ef9a7bd8faa09afe91