Three people have been killed and around 100 wounded in a train crash near Buenos Aries.
A passenger train hit an empty, stationary train near Castelar station, about 30km from the Argentine capital.
In February last year an accident on the same Sarmiento line killed 50 and injured around 700.
Argentina’s railway system has been in crisis for decades due to low investment.
It transports millions of people per day, with the busiest routes in and out of Buenos Aires.