Tesla Motors will slow the rate of its deliveries in Norway, the company’s best market per capita, according to Elon Musk.

Musk announced the call on his personal Twitter page, responding to a report saying that local authorities had stopped Tesla-carrying trucks more than half a dozen times for a range of safety reasons.

One truck that wasn’t stopped by authorities ended up in an accident, with two Model S vehicles crushed on the trailer, according to Electrek.

“I have just asked our team to slow down deliveries,” Musk said in his tweet. “It is clear that we are exceeding the local logistics capacity due to batch build and delivery. Customer happiness & safety matter more than a few extra cars this quarter.”

Tesla has recently started shipping its cars to Norway through Gothenburg instead of the previously used port of Drammen due to capacity issues, but the upside of the decision is that the company has to use more trucks to move the cars into their stores.

The EV maker is currently looking to find a solution to this problem, which also includes removing the transporters operating old, Euro-3 class trucks.  “We are working to clean up,” said a Tesla spokesperson in Norway to local media. “The bad cargoes will be removed as soon as we find alternatives. We have asked the Norwegian Trucking Federation to help find other suppliers that have the capacity for our volume“.

Norway is currently Tesla’s third-biggest market in the world, following U.S. and China. The Scandinavian country has been exempting electric cars from taxes and road tolls for some years now, resulting in a EV market share of around 21 percent last year.