Friday July 17, 2009, 1:10 pm
" The government on Thursday dispatched 1,000 federal police officers to Michoacan state in southwest Mexico, increasing its presence to 1,300 total, Public Safety spokeswoman Veronica Penunuri told CNN.

At least 18 federal agents and two soldiers have been killed since the weekend in Michoacan, the home state of President Felipe Calderon.

The sudden spike in violence followed the arrest Saturday of Arnoldo Rueda Medina, whom authorities described as a high-ranking member of the drug cartel known as La Familia Michoacana.

Cartel members first attacked the federal police station in Morelia to try to gain freedom for Rueda, authorities said.

When that failed, drug gangs attacked federal police installations in at least a half-dozen Michoacan cities, according to authorities."

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