The sister of the Boston Marathon bombing suspect was arrested in New York City on Wednesday for allegedly making a bomb threat, police said.

Ailina Tsarnaev, 24, sister of Dzhokhar and Tamerlan Tsarnaev, was charged with aggravated harassment after a bomb threat was made by phone to another woman Monday.

The recipient, whose name was not released, notified police of the threat, according to New York Police Department Lt. John Grimpel.

Ailina Tsarnaev, a resident of North Bergen, New Jersey, turned herself in to authorities Wednesday.

Her boyfriend shares a child with the woman who was threatened, Grimpel said.

Alina Tsarnaev is no longer in custody and is expected to report to Manhattan criminal court on September 30, according to Grimpel.

Calls to her attorney were not immediately returned to CNN.

Her brothers were accused of planting pressure-cooker bombs at the finish line of the 2013 Boston Marathon that killed three people and injured more than 260. They also were accused of killing a Massachusetts Institute of Technology police officer.

Older brother Tamerlan was killed in a police shootout, and Dzhokhar was captured in the days after the bombing. Dzhokhar Tsarnaev is awaiting trial in November on terrorism charges.

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What did suspected bomber's widow know?

Answer this series of questions:

1. Whose brothers were accused of planting bombs a the finish line of the 2013 Boston Marathon?
2. How old is she?
3. Where was she arrested?
4. On what day?
5. Why?
6. How is her boyfriend connected to the woman she threatened?
7. Is Alina Tsarnaev still being held?
8. Where is she supposed to report to?
9. When?
10. Who is John Grimpel?
11. Where does Ailina Tsarnaev live?
12. How many people did her brothers kill?
13. How many did they injure?
14. What were her brothers named?
15. What exactly was Ailina Tsarnaev charged with?
16. Is Dzhokhar the older brother?
17. Which brother is still alive?
18. When will his trial be?
19. How was Tamerlan killed?
20. Do we know the name of the woman threatened by Ailina Tsarnaev?
1. Ailina Tsarnaev
2. 24
3. New York City
4. on Wednesday
5. making a bomb threat
6. He shares a child with the woman
7. no
8. Manhattan criminal court
9. September 30
10. New York Police Department Lt.
11. a resident of North Bergen
12. three people
13. more than 260
14. Dzhokhar and Tamerlan Tsarnaev
15. aggravated harassment
16. no
17. Dzhokhar
18. November
19. in a police shootout
20. no