COLUMBUS, Ohio (AP) — A central Ohio firefighter who went into cardiac arrest when lightning struck outside a soccer stadium in June is improving.

The Columbus Division of Fire said Tuesday that Lt. Stu Tudor is alert and has all his memory, but still is unable to talk. However, he’s able to move his mouth to form words and shake his head to simple yes-or-no questions.

The agency says Tudor is working with therapists, and his body movements continue to slowly improve.

Authorities believe the off-duty firefighter was struck by lightning while attending a charity event before an MLS game at Crew Stadium in Columbus on June 28.

He initially was put into a medically induced coma.

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