The top officer of Mexico's federal police force has quit amid allegations that drug gangs have infiltrated senior levels of crime-fighting agencies, according to a resignation statement posted Saturday.

Acting federal police Commissioner Gerardo Garay said he was stepping aside 'to place myself at the orders of legal judicial authorities to clear up any accusation against me.'

Garay did not say what accusations he was referring to, nor were federal officials available Saturday to comment on the resignation. But the newspaper Reform reported Saturday that prosecutors are looking into whether the federal police assigned to the Mexico City airport had aided drug traffickers.

Bolivia's president says he is suspending operations by the U.S. Drug Enforcement Administration as relations between the two countries worsen.

President Evo Morales accuses the DEA of involvement in regional anti-government protests. U.S. officials have denied promoting such actions.

Morales announced the cutoff in DEA operations in a speech Saturday in which he said his government has wiped out more than 5,000 hectares (12,300 acres) of illegally planted coca this year. Coca is the raw material for cocaine, but Bolivians use it in its natural form as a traditional tea or chew.

A botched plan to rob a drug buyer of his money led to the buyer being shot to death.

Michael Mineo in the hospital. By COLLEEN LONG Associated Press Writer NEW YORK -- On the afternoon of Oct.

SALT LAKE CITY _ Police arrested a Greyhound passenger from Ohio for allegedly making a false claim that armed men aboard the bus were plotting a hijacking during a 21-hour trip from Los Angeles to Denver.