MEXICO CITY (AP) — The Mexican government is urging the United States to release a $400 million package of anti-crime aid approved by the U.S. Congress in June.

Mexican Foreign Relations Secretary Patricia Espinosa says the U.S. Congress is still analyzing supporting documents that were requested of Mexico.

But Espinosa says Mexico needs the aircraft, inspection equipment and other aid as soon as possible.

Espinosa told reporters on Tuesday that "we are insisting that we need the equipment," and "we hope it will come very soon."

For almost two years, Mexico has deployed tens of thousands of federal police and soldiers to combat increasingly violent turf battles between drug cartels.