A lockdown has been lifted at a hospital in Colorado Springs where several of the wounded from the Planned Parenthood shooting were treated.

Penrose Hospital went on lockdown due to a security concern over a suspicious, local television station KUSA reported.  Investigators scoured the hospital for the person, but didn't find anyone matching the description. The hospital then lifted the lockdown, KUSA reported.

Several victims of Friday's Planned Parenthood shotoing were being treated at Penrose Hospital. 

Related: Police name suspect in Colorado Springs Planned Parenthood shooting

The gunman who stormed the clinic on Friday killed three people and wounded nine others before surrendering to police after a bloody siege lasting several hours inside the facility, authorities said.