South Korea Blue House
The Blue House is the official residence of the South Korean head of state, Park Geun-hye, in the capital city of Seoul. Getty Images

North Korea has reportedly carried out the largest-ever military drills and simulated an attack on the Blue House, the official residence of South Korean President Park Geun-Hye. The simulation exercise was supervised by the country's leader, Kim Jong-un, according to the KCNA state news agency.

Images broadcast by North Korea's media, show soldiers being inspected at a huge military parade and rocket launchers releasing missiles. "Artillery shells flew like lightning and intensely and fiercely struck targets simulating Cheong Wa Dae and rebel governing bodies in Seoul," said the KCNA report that warned of a "miserable end" for President Park Geun-hye.

According to the report, Kim Jong-un has said that he can transform Seoul "into rubble and ashes" if his enemies attempt to challenge Pyongyang. "If the enemies challenge us ... our artillery forces' merciless retaliating blow will turn Seoul into rubble and ashes," said Kim Jong-un. Meanwhile, South Korean President Park Geun-Hye has alerted her army to remain on high alert as Pyongyang raises tensions between the neighbours. "Reckless provocations will only become a path to self-destruction for the North Korean regime," said Park Geun-Hye, reported BBC News.

Tensions have been rife in the Korean Peninsula since the UN levied heavy sanction on North Korea since its recent rocket tests and after the US and South Korea engaged in joint military exercises. The KCNA report confirmed that the North Korean leader's recent threats are a direct response to the drills by "the gangster US and [South Korean president] Park Geun-Hye forces."

According to another recent North Korean report, the country has built a hydrogen bomb that is reportedly powerful enough to "immediately" kill everyone in Manhattan, and the city would "burn down to ashes." North Korea conducted its fourth nuclear test in January 2016 claiming that they had tested a hydrogen bomb, however rocket experts doubted the claim.