Fourteen people died on Sunday when a matatu and a lorry collided on the Mombasa-Malindi Highway.
Coast Regional Police Commander Rashid Yakub initially reported seven deaths and said three people were seriously wounded.
"The lorry and the matatu collided head-on. Our officers are at the scene. We will give more updates later," Mr Yakub told the Nation on the phone.
In an update later in the day, Kilifi County Hospital Medical Superintendent Eddy Nzomo said the number of those who died had doubled to 14.
Dr Nzomo said the victims were six men, six women, a child and the lorry's driver.
The accident took place at Shauri Moyo near Kijipwa Police Station.
Reports indicated that the matatu was heading to Mombasa from Kilifi.