It's getting better, but recently there have been some disturbing incidents.

A series of strange and disturbing incidents then begins to occur.

They took her mind off the latest disturbing incident.

The most disturbing incidents concerned sisters who became pregnant, she wrote.

The one really disturbing incident of the day happened about four o'clock.

I am obliged to note some recent disturbing incidents and harassment.

The third disturbing incident of those early weeks happened that same night.

"Excellence, might I call your attention to this rather disturbing incident?"

And that disturbing incident with the air in his cubby.

This was brought home to me recently by a disturbing incident I would have ignored had it been isolated.