Visakhapatnam: Amid protests against the Agnipath scheme, a high alert was raised at all railway stations across the nation as the protestors are setting fire to trains and vandalising the railway assets. After the intelligence report, heavy security was deployed at Visakhapatnam, Guntur and Tirupati railway stations and all railway stations were closed till the afternoon. Speaking to the media, DCP Gangadhar said that after the Chalo Vizag call from the protestors, heavy forces are deployed in the city and allowing the people only after checks at the city borders. He added that they are taking the suspects into custody.