LINDSAY LOHAN ARRESTED IN NYC!

Lindsay Lohan was arrested for leaving the scene of an accident early this morning after allegedly clipping a pedestrian in downtown Manhattan ... TMZ has learned.

Law enforcement sources tell TMZ, Lindsay was pulling in to park her Porsche Cayenne near the Dream Hotel in downtown NYC when -- at a very low speed -- she allegedly hit the knee of a 30-something year old guy. That was around shortly after midnight.

One of Lindsay's passengers in the SUV got out and checked the vehicle for damage, and then LiLo and co. went inside the hotel.

Someone called police while Lindsay was inside ... and when she walked out of the hotel -- around 2:30AM ET -- officers arrested her.

According to TMZ sources ... Lindsay was booked for leaving the scene of an accident -- a misdemeanor -- and then released with a desk appearance ticket ... meaning she did not have to pay bail before release.

Alcohol was not involved.

The alleged victim was hospitalized ... however, he was not knocked down or dragged, and didn't have any visible injuries.

This arrest could absolutely trigger a probation violation in Lindsay's jewelry theft case because one of the conditions of probation is she OBEY ALL LAWS.

Even without a conviction, Judge Stephanie Sautner -- the judge in the jewelry theft case -- could haul Lindsay's butt into court if there's probable cause to believe she committed a crime.

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