Police did not provide further details.
Bryan Konoski, an attorney for Lohan's ex-girlfriend Erin Muller, has told the New York Post that Lohan allegedly phoned Muller at work Jan. 21.
That would violate an order of protection.
Lohan had been arrested on a similar charge in December.
In June, a judge said Lohan would avoid prosecution on an aggravated harassment charge if he stayed out of trouble for a year.
Lohan denied he threatened to kill his girlfriend and himself if she left him.
Lohan's attorney had said his client is the victim of fabrications.
The actress reportedly is estranged from her father.
