Indeed, there were weeks when the number of arrests went down.

For the first time in three days, a significant number of arrests were made.

He said the number of arrests was likely to grow.

That brought the number of arrests since the trouble began last week to more than 4,500.

The total number of arrests across Iran since the election was reported as 500.

And he said that the number of arrests increased to 247 from 22 during the same period.

That would be eight times the number of arrests just six years ago.

But the total number of arrests made by the unit over those two years was less than 10,000.

Information on the number of arrests was not immediately available.

This was about half the number of arrests last year.