Two dozen people were injured when a coach, a minibus and a car collided on Tallinn-Narva highway.
Police were alerted of the accident in Aseri parish at 09:25 on Friday morning.
According to preliminary information, the coach failed to brake in time after a minibus travelling in front of it reduced speed for a left hand turn, pumping into the shuttle bus. The crash caused both to veer left onto oncoming traffic, where they then collided with an SUV.
Over 24 people were injured, several of them seriously, the local hospital confirmed to ERR.
One 48-year-old woman died in the hospital on Monday morning. According to the police, the woman had been travelling in the minibus.
The coach was carrying 29 passengers, including teenagers.
Police said weather and road conditions were difficult at the time of the accident.