Lucknow: Two persons, including a minor girl, were killed and 13 others injured when an overloaded tempo carrying school students collided with a truck here, police said on Thursday. The incident happened yesterday at Mohanlalganj area in the city, they said. The tempo was carrying 14 students of different schools. A class II girl student of Adarsh Shiksha Niketan Junior High School was among those killed in the mishap. Tempo driver, who sustained serious injuries and was rushed to a primary health centre, was declared brought dead.