the cause of explosion is not yet clear. blacksburg is an east of the economic hub of johannesburg, near the international airport. and thousands of supporters of india's main opposition party marching through the capital, new delhi. they've been crossing the country for more than 3 months now in what's seen as a show of strength by the indian national congress. the party was once the largest, but now governs only 3 of the $28.00 states. march is expected to continue until february. hadley metal has more from the deli. oh, how does the people have gathered to join one up in just most powerful men on these, the side of just me national opposition party, the indian national congress. any has been walking thousands of kilometers across india. he says his goal is to unite the country called the rise by the governing gucci. it comes as the congress. it's toggling to survive. it's down to one. if it's lowest tardies in parliament, i'm only going to see state, meanwhile, prime minister in the movie and the beach if he remains incredibly popular and on challenge dislike, growing criticism. there