In Washington, DC, police appear to be preparing to clear protesters still out on the streets past curfew.

It’s coming up to 1 a.m. local time. The curfew went into effect at 7 p.m.

After violent clashes this past week in Lafayette Park, close to the White House, a new fence was put up around the park. Police are now standing on the opposite side of the fence from the crowd of protesters, who number between 200 to 250, said CNN Correspondent Alex Marquardt from the scene.

Every now and then, protesters try to rock the fence, but they are often shouted down by other protesters.

Things escalated briefly, with protesters throwing fireworks and other projectiles through and over the fence at the police — who responded by using pepper spray blasts at the crowd, and what appears to be flash bangs.

“Now what you’re seeing is the response from the DC National Guard,” said Marquardt. “I’m not seeing any park police, this is all military police.”

Protesters are tending to those hit with the pepper spray, pouring milk and water on their faces and eyes to provide relief.