LOS ANGELES - Lindsay Lohan and Samantha Ronson have split -- for now.

Lohan says that she and the 31-year-old Ronson, who announced they were a couple in September, are "taking a brief break so I can focus on myself."

Lohan, 22, made the comments to a U.S. entertainment show after a tumultuous weekend that saw the troubled pop star barred from a Ronson family party.

The two have been dogged by rumors of arguments and breakups for months and are often photographed fighting.