Four more persons have been picked up by the police for their alleged roles in last week 39;s train accident at Abortia in the Volta Region. They are Kokou Koudjo, a 34-year-old gas welder, Patrick Kwaku Sosu, a 52-year-old labourer, Alaza Prosper, a 28-year-old labourer and Fiadugbe Emmnauel, a 31-year-old labourer.