Mexico City, January 28 (RHC-PL) -- Thousands of people marched through the streets of the city demanding punishment for those responsible for the death of 43 teaching students four months ago.

The parents of the students said during a meeting of the Eighth Global Action Day for Ayotzinapa, held at the Zocalo square in the Federal District that they will not accept the death of their sons until the government presents strong scientific evidence. The families say that they will continue searching for those students, and requested support from society to find them.

In front of members of social, union, rural organizations, institutions, teachers and students, participants also spoke so there are no elections in the state of Guerrero.

They have demanded that the General Attorney Office of the Republic (PGR) open a new inquiry to investigate the Army's responsibility in the violent events that occurred in the Guerrero municipality of Iguala.

Local publications reported rallies in Colima, Tamaulipas, Sinaloa, state of Mexico, Baja California and Oaxaca, among other Mexican states that joined the action day.