Updated

A New York state trooper says he was concerned that Kerry Kennedy may have suffered a seizure or stroke after her car swerved into a truck in 2012.

Trooper Bradley Molloy testified Tuesday during Kennedy's drugged-driving trial.

Molloy says Kennedy passed several drug tests that he administered after the crash.

Kennedy is the ex-wife of New York Gov. Andrew Cuomo, daughter of Sen. Robert F. Kennedy and niece of President John F. Kennedy.

The defense says Kennedy accidentally took a sleeping pill instead of thyroid medication. Prosecutors say it's up to jurors to decide whether she took the drug accidentally. They say she broke the law if she kept driving after feeling the drug's effects.