Acts 16:38

And the serjeants told these words unto the magistrates: and they feared, when they heard that they were Romans.

The sergeants reported these words to the magistrates, and they were afraid when they heard that they were Romans,

And the sergeants reported these words unto the magistrates: and they feared when they heard that they were Romans;

And the rod-bearers told to the magistrates these sayings, and they were afraid, having heard that they are Romans,

So the officers relayed this message to the magistrates, who were alarmed to hear that Paul and Silas were Roman citizens.