World

Large demonstrations in support of 43 missing students expected in Mexico City

  • Photographs of the 43 disappeared students from the Rural Normal School of Ayotzinapa in the state of Guerrero sit on school desks placed in a plaza at Mexico's National Autonomous University (UNAM) as a form of protest by students in Mexico City, Thursday, Nov. 20, 2014. The students disappeared at the hands of a city police force on Sept. 26 in the town of Iguala. (AP Photo/Moises Castillo)

    Photographs of the 43 disappeared students from the Rural Normal School of Ayotzinapa in the state of Guerrero sit on school desks placed in a plaza at Mexico's National Autonomous University (UNAM) as a form of protest by students in Mexico City, Thursday, Nov. 20, 2014. The students disappeared at the hands of a city police force on Sept. 26 in the town of Iguala. (AP Photo/Moises Castillo)  (The Associated Press)

  • A riot police officer falls after protesters threw molotov cocktails at them near the airport in Mexico City,Thursday, Nov. 20, 2014. Mexico City is bracing for demonstrations as caravans of students and family members of 43 missing college students converged on the capital after several days crisscrossing the country. (AP Photo/Marco Ugarte)

    A riot police officer falls after protesters threw molotov cocktails at them near the airport in Mexico City,Thursday, Nov. 20, 2014. Mexico City is bracing for demonstrations as caravans of students and family members of 43 missing college students converged on the capital after several days crisscrossing the country. (AP Photo/Marco Ugarte)  (The Associated Press)

  • A riot police officer gathers rocks that were thrown at them as they move past a burning fast food delivery motorcycle after protesters threw molotov cocktails at them near the airport in Mexico City,Thursday, Nov. 20, 2014. Mexico City is bracing for demonstrations as caravans of students and family members of 43 missing college students converged on the capital after several days crisscrossing the country. (AP Photo/Marco Ugarte)

    A riot police officer gathers rocks that were thrown at them as they move past a burning fast food delivery motorcycle after protesters threw molotov cocktails at them near the airport in Mexico City,Thursday, Nov. 20, 2014. Mexico City is bracing for demonstrations as caravans of students and family members of 43 missing college students converged on the capital after several days crisscrossing the country. (AP Photo/Marco Ugarte)  (The Associated Press)

Mexico City is bracing for demonstrations as caravans of students and family members of 43 missing college students converge on the capital after several days crisscrossing the country.

Three marches demanding justice for the students from a rural teachers college, who disappeared on Sept. 26, are to merge Thursday evening in the city's central square.

The government has said gangsters in the southern state of Guerrero killed and incinerated the students after police in the town of Iguala intercepted them on the mayor's orders and turned them over to the criminal group Guerreros Unidos. Their families have rejected that account and the marches aim to keep the pressure on the government to find them.

Demonstrators temporarily blocked a road to the airport Thursday, but it has continued to function normally.