A head-on collision between a minibus and a dump truck left at least 14 dead and 19 injured in the Brazilian city of Manaus, capital of the northern state of Amazonas, officials said Saturday.

The dump truck, which was carrying a load of sand, lost control, entered the on-coming lane and collided with the minibus shortly before 8:30 p.m. Friday.

Among those killed were the two drivers, a woman who was six months pregnant, and a one-year-old boy.

Two of the injured are listed in serious condition and five were discharged from the hospital Friday night, according to the Manaus municipal government, which declared three days of mourning.

The truck was new and was to be used in a city road project. EFE