Mexican authorities are preparing to issue arrest warrants that could target Army soldiers for the first time in the ongoing investigation into the 2014 disappearance and presumed massacre of 43 students from a teachers’ college in Ayotzinapa, Guerrero. Reuters reports new warrants are also being issued for local, state and federal police. This week, President Andrés Manuel López Obrador said he’ll confirm new information on the case over the weekend, on the sixth anniversary of the students’ abduction.