Smoke rises in a mock chemical explosion, as South Korea holds an anti-terror drill at a subway station on Monday.<br/> <br />Tensions are high in the Korean peninsula as North Korea celebrates the 101st birthday anniversary of the birth of its founder Kim Il-Sung, with some fearing the event would come with a display of military might.<br/> <br />Monday's exercise simulated a bomb attack by North Korea.<br/> <br />Security personnel also practiced how to respond to attackers with explosives and evacuate people in an emergency.<br/> <br />Elsewhere in Seoul, demonstrators burned effigies of North Korean leader Kim Jong-un, his father Kim Jong-il and the North's founder.<br/> <br />Pyongyang has threatened for weeks to attack the United States, South Korea and Japan after new U.N. sanctions were imposed in response to its latest nuclear arms test in February.<br/> <br />The United States has offered talks, but on the pre-condition that the North abandons its nuclear weapons ambitions.
