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Boyfriend arrested after vicious hammer attack on woman

SAN DIEGO -- A man was arrested after allegedly attacking his girlfriend with a hammer in Mountain View early Tuesday.

The woman was found bleeding on the ground at 39th Street and Logan Avenue around 12:30 a.m. and transported to the hospital. The extent of her injuries is not yet known.

Police say the man took off in the woman's car after the vicious attack. He was later arrested at his grandmother’s house.