MEXICO CITY (AP) -- A string of water pollution disasters in Mexico have turned into political battles with officials struggling to blame spills on each other.
On Wednesday, the governor of northern Sonora state called for the expulsion of federal environmental officials from his state.
Sonora experienced one of the worst mining spills in recent memory, when 10 million gallons (40,000 cubic meters) of copper sulfate and heavy metals leaked into rivers.
Gov. Guillermo Padres criticized federal authorities for not doing enough to stop or remediate the Aug. 7 spill.
But that disaster was followed by another controversy this week when local media revealed that Padres had dammed a river that runs through a ranch owned by his family.
Federal officials said he hadn't gotten permits to build the dam, drawing his ire.