Kseniia Petrova’s future has hung in the balance since she allegedly failed to declare frog embryos that she was bringing ...

Kseniia Petrova, 31, was first detained by ICE before being transferred to criminal custody earlier this month. Wednesday's ruling ensures that if she is granted bail and released at her criminal ...

Russian-born scientist Kseniia Petrova has been detained by U.S. Immigrations and Customs Enforcement since February when she failed to declare frog embryo samples at Boston's Logan Airport.

Russian-born scientist Kseniia Petrova, 30, is currently in the custody of the U.S. Marshals Service in Louisiana. She is expected to be brought to Massachusetts as early as Friday in preparation ...

A federal judge granted bail Wednesday to Harvard scientist Kseniia Petrova, who has spent more than three months in custody after failing to declare frog embryos upon arriving in the United States.

PHOTO: Harvard University researcher Kseniia Petrova, 30, smiles after being released on bail from federal custody at the John Joseph Moakley United States Courthouse, June 12, 2025, in Boston.

Two years ago, Russian-born scientist Kseniia Petrova started working for Harvard Medical School's renowned Kirschner Lab after being recommended and recruited by top international scientists.

His cell phone rings. On the other end, Kseniia Petrova is silent. She leans against a brick wall in a freezing ward with 101 other women, cradling one of six working phones to her ear. She listens.

A lawyer representing Kseniia Petrova, a Harvard scientist in the United States on a J-1 work-study visa detained for failing to declare scientific samples in her luggage, says her arrest lacked ...