In February, two Miller County Jail inmates got out through a hole in the roof.

Then in April, three inmates used a hacksaw to escape from the jail.

And just a few days ago six inmates used a hacksaw to cut through window bars and jump to the yard below. Five of the men—using a blanket to top the razor wire—made it over the fence into the night. As of Thursday, two are still at large.

In the latest escape, it appears that after visiting hours ended Tuesday, the six inmates went into a two-man cell where they were able to work on cutting through the bars undi...