Updated

San Diego police have detained a person in the investigation of attacks on homeless men that have left three dead.

Capt. David Nisleit tells KNSD-TV (http://bit.ly/29DwrxF ) that the person was detained early Friday after a new attack on a sleeping man.

Officers responding to screams found a 55-year-old man with significant trauma to his upper torso.

No information about the detained person has been released.

Friday's attack would be the fifth in the series that began July 3.

Earlier this month, police arrested a man in the case, but no charges were filed and he was released.

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Information from: KNSD-TV, http://www.nbcsandiego.com/index.html