Police and the Ghana Revenue Authority are investigating customs officials at Tema Port. This is because of claims that some officials took bribes.
The investigation started after someone reported what they saw. This person is called a whistleblower.
Officials are now gathering information and evidence. They want to find out if the claims are true.
This could involve looking at records and talking to people.
The Tema Port is a very important place for trade in Ghana. Such alleged crimes can affect how goods move in and out of the country.
The Ghana Police Service is leading the investigation.
They will share more details when the investigation is complete.