Pakistani police said Monday they have arrested one of the two assailants suspected in the gang rape of a woman on a deserted highway after another person was wrongfully detained in the case the previous day. The assault, which happened near the eastern city of Lahore last week, has shocked Pakistan, even though attacks on women are common in this deeply conservative Muslim country. The woman in the case was raped by two armed men after her car broke down late at night on a highway in the province of Punjab, where Lahore is the capital.