WASHINGTON (AP) -- Huge increases in deportations of people after they were arrested for breaking traffic or immigration laws or driving drunk helped the Obama administration set a record last year for the number of criminal immigrants forced to leave the country, documents show.

The U.S. deported nearly 393,000 people in the fiscal year that ended Sept. 30, half of whom were considered criminals. Of those, 27,635 had been arrested for drunken driving, more than double the 10,851 deported after drunken driving arrests in 2008, the last full year of the Bush administration, according to Immigration and Customs Enforcement data provided to The Associated Press.

An additional 13,028 were deported last year after being arrested on less serious traffic law violations, nearly three times the 4,527 traffic offenders deported two years earlier, according to the data.