Two Nigerian nationals were on Friday Morning arrested in Nyali, Mombasa County by the Kenya Anti-narcotic police carrying 1.5kg of heroin believed to be worth Sh4.5 million.
The two, identified as Chukwu James and Gageche Gold Patience were arrested after police officers raided an apartment they were operating from in the posh coastal estate.
Police officers speaking to journalists said that the duo was found packing the drugs in suitcases, in readiness for a trip to Belgian capital city, Brussels.
The narcotics are said to have been sourced from Tanzania and were smuggled through the Kenya-Tanzania border.
Police said that the two will be arraigned in court later in the day.