Updated

San Francisco police are investigating a second hate crime during the city's Gay Pride festivities.

Police spokesman Albie Esparza says a member of the Sisters of Perpetual Indulgence and her husband were attacked Saturday night by a group of four people who yelled anti-gay slurs.

The sisters are a performing arts troupe that dresses in nuns' habits.

The assailants then fled on foot. Both victims were treated at the scene.

Police have previously said another attack in the city on Saturday — this one on two women — was also preceded by ant-gay slurs and is being investigated as a hate crime.

Esparza says the city experienced 20 bias crimes last year, with sexual orientation accounting for at least eight of them.