A British woman has been arrested in Ghana after being accused of attempting to bring up to 18kg of cannabis into the UK.

The 23-year-old had been set to board a British Airways flight from Accra, Ghana, back to London's Gatwick Airport on May 18, when she was approached by officers as part of a 'profiling exercise', the Ghanaian Government has claimed.

Ghana's Narcotic Control Commission (NACOC) alleged that luggage checks revealed that the young Brit had hidden 32 slabs of substances initially suspected to be a narcotic drug in two suitcases destined for London.

A later field test proved positive for cannabis, with the drug weighing 17.72kg in total.

She was arrested by officers at the airport and has been reportedly moved to the NACOC's headquarters in Accra for further investigation.