An 18-year-old woman has been charged with simple assault after an "altercation" last week with Mayor Nutter's daughter, Olivia.

Ciarra Ryan surrendered to Northwest Detectives on Monday, police said.

The incident followed a track meet at a stadium on East Sedgwick Street in East Mount Airy on April 18, police said.

According to court records, Ryan was accused of punching Olivia Nutter in the head and face and pulling her hair.

Few details were available Wednesday about what led to the incident - police said there had been "a verbal altercation."

Mark McDonald, a spokesman for Mayor Nutter, said there had been "an incident and Olivia is fine."

"Now the appropriate authorities are dealing with the matter," he said.

Ryan also was charged with recklessly endangering another person.

A spokesman for the School District could not be reached Wednesday evening, and it was unclear if Ryan was a student or was involved any way in the track meet.

Olivia Nutter is a senior at Masterman High School on Spring Garden Street.

As a 12-year-old sixth grader attending the city's public schools, she earned a measure of citywide fame and praise for starring in a television campaign commercial that some pundits credited with helping propel her father's come-from-behind victory in the Democratic mayoral primary in 2007.

Inquirer staff writers Mike Newall and Jennifer Lin contributed to this article.