LOS ANGELES — A JetBlue flight attendant who authorities say left behind 70 pounds of cocaine worth up to $3 million after flinging off her heels and running from security at Los Angeles International Airport was arrested Wednesday in New York.

Marsha Gay Reynolds surrendered to federal authorities at John F. Kennedy International Airport, though it wasn’t immediately clear how she reached New York, federal officials said.

Transportation Security Administration officials asked Reynolds to step aside for a random security screening Friday, authorities said.

TSA Officer Jamie Samuel said the flight attendant became nervous and began looking around before pulling out her cellphone and making a call, according to an affidavit. Samuel reported that Reynolds was talking on the phone in a foreign language as she was being taken to a secondary screening area, the affidavit says. Once in the secondary screening area, another officer asked for her identification.

‘‘At this time, Reynolds dropped her carry-on luggage, removed her shoes, and began to run away,’’ according to the affidavit.

She fled barefoot downward on an upward-moving escalator, LAX airport police officers said Monday.

LAX police soon after found 11 packages of cocaine wrapped in green cellophane inside one of the bags Reynolds had left behind, the affidavit says.

Reynolds was charged with cocaine possession with intent to distribute.

Associated Press