An officer walks past burning debris during <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2016%2F06%2F20%2Famericas%2Foaxaca-mexico-clashes%2Findex.html">deadly clashes between striking teachers and police</a> in Oaxaca, Mexico, on Sunday, June 19. The violence came after seven days of protests disrupting traffic on a major highway connecting Oaxaca to Mexico City, the government said.
An officer walks past burning debris during deadly clashes between striking teachers and police in Oaxaca, Mexico, on Sunday, June 19. The violence came after seven days of protests disrupting traffic on a major highway connecting Oaxaca to Mexico City, the government said.
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Teachers are protesting an overhaul of how they are evaluated. Demonstrators are also out in Mexico City on June 19.
Teachers are protesting an overhaul of how they are evaluated. Demonstrators are also out in Mexico City on June 19.
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Police detain protesters during June 19 clashes in Nochixtlan, a town in the state of Oaxaca.
Police detain protesters during June 19 clashes in Nochixtlan, a town in the state of Oaxaca.
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Demonstrating teachers block a highway in Oaxaca on June 19.
Demonstrating teachers block a highway in Oaxaca on June 19.
Luis Alberto Hernandez/AP
Teachers protest on a highway in Oaxaca on June 19.
Teachers protest on a highway in Oaxaca on June 19.
Luis Alberto Hernandez/AP
Protesters march in Mexico City on Friday, June 17.
Protesters march in Mexico City on Friday, June 17.
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Protests stop cars and trucks on a highway in Oaxaca leading to Mexico City on Wednesday, June 15.
Protests stop cars and trucks on a highway in Oaxaca leading to Mexico City on Wednesday, June 15.
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Teachers protest in Oaxaca on Tuesday, June 14.
Teachers protest in Oaxaca on Tuesday, June 14.
Manuel Velasquez/Anadolu Agency/Getty Images