The suspect, who engaged in a protracted gun battle with police, surrendered to officers inside the building about five hours after the clinic siege began.

Authorities did not report any fatalities, but a police spokeswoman, Lieutenant Catherine Buckley, said police were still searching for possible victims who might have been left behind in the clinic as the building was evacuated.

His capture was first confirmed by the city in a message posted to its Twitter account. Police elaborated on the circumstances in a news conference moments later.

An hour earlier, police said progress in securing the building was slowed by the fact that the gunman brought 'some bags' with him into the clinic and left several items outside, all of which needed to be checked for possible booby traps or explosives.

President Barack Obama was notified of the shooting by his Homeland Security adviser, Lisa Monaco, and "will be updated on the situation as necessary, a White House official said.


Read more: Three killed, nine injured in attack on Colorado clinic

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