By the time civilian authorities arrived, however, it was too late.

Sergeant found out where her body was being held till the authorities arrived.

By then the authorities had arrived, and they swiftly took over the scene.

"I'd rather be on the other side of the river before the local authorities arrive."

It was only a few moments later that the authorities arrived.

From the time the authorities arrived at my door, I tried to convince myself it was true.

The authorities arrived within minutes of the attack, but I was hysterical.

When the authorities arrived to arrest him that night, he had already gone.

Or maybe someplace where they would be locked up until the authorities arrived.

It seemed that the Russian authorities had arrived in force.