The police have arrested 10 Burundians and a Rwandan found smuggling 400 cartons of plastic paper bags and marijuana into the country.
The suspects were arrested in Kibungo town. They were travelling by bus heading to Kigali, from Kirehe district.
Police said the suspects had smuggled the goods through one of the most notorious entry points on the Burundi and Rwanda border in Gahara sector.
Rwanda banned disposable plastic bags in 2005. The ban was effected in three years later. However, Rwanda, which replaced the menacing bags with paper bags, is the only country of the five EAC member states with effective policy on plastic bags.
The initiative was a response to the plastic's negative environmental impact, amid extensive physical presence of bags across the country.
Supt. Benoit Nsengiyumva, the Eastern Province Police spokesman, said the suspects would be charged as soon as investigations are complete.
"Rwanda is now entering its fourth year with a nationwide ban on all plastic bags. This is what we are guarding; as Police and we won't rest," he said.
Nsengiyumva said the suspects would also be charged with illegal entrance into the country and trafficking in marijuana, an illegal drug.