Actress Lindsay Lohan has been ordered to appear in court on Friday following media reports that she may have violated the terms of an alcohol education program imposed for a 2007 drunk driving case.

Lohan, 23, risks being sent to jail if she is found to have broken her probation or other orders imposed as part of her sentence.

Beverly Hills Superior Court judge Marsha Revel told Lohan to attend Friday's normally routine hearing in person, court officials said.

Celebrity web site said officials running the alcohol education program had expressed concern about Lohan to the court.

In August 2007, the Mean Girls actress was ordered to complete an 18-month alcohol education program, serve 24 hours in jail and perform 10 days of community service while on 36 months probation for drunk driving, reckless driving and driving under the influence of cocaine.

Lohan found fame as a child star in the 1988 movie The Parent Trap, but went onto become one of the most troubled and talked-about teen stars in Hollywood.

Earlier this month fashion critics panned her debut collection in Paris as artistic advisor to the Emanuel Ungaro fashion house. Lohan told People magazine on Wednesday that she was still learning and blamed the Paris fiasco on coming in so late and not having that much time to do a whole collection.