She did a couple of rounds every night, watching the city for unusual activity.

No unusual activity had been observed from the North, officials said.

Great Pass was cleared and we saw no troops or other unusual activity.

If you note unusual activity in any of your people, please report it to me.

On an otherwise quiet and dark block, we came upon a building with some unusual activity taking place inside.

"I understand you wish to know about any unusual activity in Berlin."

They can be alert for any suspicious or unusual activity.

I haven't heard of any unusual activity around here, so it must be somewhere else.

In fact, no signs of unusual military activity were reported.

Your business involves any unusual activities for a residential area.