Local police reported the accident on the night of January 24, with the bus carrying 25 passengers having crashed on the E18 highway.
The bus crashed at about one a.m. on a slippery road, and crashed into a bank of snow on the side of the road.
Buss med 25 passasjerer kjørt av vegen og veltet E18 Ørje. Nødetatene på veg til stedet.
— Politiet Østfold OPS (@PolitiOstfldOPS) January 24, 2018
Norwegian media say that most passengers suffered only minor injuries, with three passengers hospitalized, and one of them may have had their leg broken.
Marina Avidana, a Russian woman living in Stockholm, said on Facebook that several Rigans had been on the bus.
"Rescuers pulled me out via the windshield. A guy from Riga broke the glass, it wasn't that easy! The crash happened six km away from the border between Sweden and Norway.. I made friends with the driver who was resting and with several guys from Riga," she wrote.
Local police told Rus.lsm.lv that they've yet to determine what were the nationalities of the people on the bus. "But I know that the bus was from Germany and its driver was from the Czech Republic," a representative of the police told Rus.lsm.lv.
The Foreign Ministry has yet to learn whether Latvian nationals were on the bus and whether they've been injured, but it plans to obtain said information as soon as possible, the ministry said.