Frankfurt Airport has been partially evacuated after someone managed to pass into the departure lounge without going through security checks.

Passengers were being allowed back into Terminal 1 of Frankfurt Airport on Wednesday afternoon at around 12.20 pm, after the terminal was partially evacuated earlier in the day, Hessischer Rundfunk (HR) reports.

Police also tweeted that the evacuation of the area was over, that there was no danger, and that people could check in again.

HR also reported that a woman had been arrested, after she was suspected of passing through security without going through the proper checks.

The company which runs Frankfurt Airport, Fraport, tweeted earlier on Wednesday that Terminal 1 had been partially evacuated as a precautionary measure.

The company explained that passengers would need to be checked again before they depart.