Paul Pelosi, the husband of House Speaker Nancy Pelosi, was hospitalized early Friday morning after an assailant broke into their San Francisco home and beat the 82-year-old businessman with a hammer, his wife’s spokesman said.

The House speaker was not at the couple’s $6 million townhouse when her husband was “violently assaulted,” according to a statement from her spokesman, Drew Hammill.

“The assailant is in custody and the motivation for the attack is under investigation,” he said. “Mr. Pelosi was taken to the hospital, where he is receiving excellent medical care and is expected to make a full recovery. The Speaker was not in San Francisco at the time.”

The 32-year-old suspect is in custody, law enforcement officials told CNN. Two sources told the outlet that the assailant entered through the back of the house sometime before 2:30 a.m. Hammill added that the Pelosis “are grateful to the first responders and medical professionals involved, and request privacy at this time.”