MIAMI -

State prosecutors say a former Miami Beach police officer is being charged with four felonies stemming from an alleged drunken ATV crash on South Beach that seriously injured two people.

Prosecutors say ex-officer Derick Kuilan faces two counts of DUI with serious bodily injury and two counts of reckless driving, also with bodily injury. Details were expected to be released later Tuesday.

Officials say Kuilan surrendered and is being held in lieu of $30,000 bond.

Kuilan and another officer were fired earlier this month for allegedly drinking on duty before the July 3 crash.

The announcement comes one day after Miami Beach officials began steps to fire two other police officers over the false arrest of a gay tourist who had witnessed a police beating in March 2009.