(ABC NEWS) -- The White House went on lockdown for the second time this week after two individuals threw objects over the fences surrounding the building, a Secret Service official said.
Authorities closed Pennsylvania Avenue, shut down the North Lawn, and for a short period of time, would not permit individuals inside the White House to exit the building.
They later reopened the North Lawn and allowed visitors and staff to move about freely. Parts of Pennsylvania Avenue remained closed into the late afternoon.
According to a Secret Service official, both individuals were taken into custody and officers were working to clear the items thrown over the fence.
President Obama, who is spending the day fundraising in California, was not home when the incidents occurred.
ABC News’ Mary Bruce contributed to this report.