Boston Marathon bombing suspect Dzhokhar Tsarnaev's sister has been accused of threatening to bomb a New York City woman and has been arrested.

Police say Ailina Tsarnaeva made the threat via telephone Monday and turned herself in Wednesday. She's charged with aggravated harassment.

Police say the North Bergen, New Jersey, resident is due in court Sept. 30.

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Tsarnaeva has been required to check in with Massachusetts probation officers since last October after prosecutors say she didn't co-operate with a counterfeiting investigation. Her lawyer in that case hasn't returned a message seeking comment. A working home phone number for her can't be found.

Dzhokhar Tsarnaev is charged in the April 2013 marathon explosions, which killed three people. He has pleaded not guilty. His brother died after a gunbattle with police.