"That's the one thing I'm deeply concerned about, in addition to the situation itself," he added.
North Korea hailed the strength of its military after it launched a salvo of ballistic missiles on Saturday into the Sea of Japan, in an act of defiance apparently timed for the US Independence Day holiday.
Ban underlined that the missile launches were a violation of UN security Council resolutions and were "totally unhelpful" for fostering renewed talks on its nuclear programme.
"This is deeply regrettable and I am concerned about all that the DPRK is doing," Ban said.
Washington is seeking support for tough enforcement of United Nations sanctions aimed at shutting down Pyongyang's nuclear and missile programmes.
Ban noted that the problems in communicating with Pyongyang had emerged with the first missile launch.
A long-range rocket launch on April 5 was followed by the nuclear test -- the second since 2006 -- on May 25.
In the days after its atomic test, Pyongyang fired six short-range missiles, renounced the truce in force on the Korean peninsula for half a century and threatened possible attacks on Seoul.
Saturday's medium range missile launches came only days after the North on Thursday test-fired four short-range missiles into the Sea of Japan.
The concern expressed by Ban -- a former South Korean Foreign Minister -- contrasted with comments by US Vice President Joseph Biden on Sunday.
Biden dismissed North Korea's latest series of missile launches, saying the communist regime was engaged in "attention seeking" as it faced increasing isolation.
In a commentary, the North Korean ruling party newspaper Rodong Sinmun praised Pyongyang's "army-first policy."
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North Korea hailed the strength of its military after it launched a salvo of ballistic missiles on Saturday into the Sea of Japan, in an act of defiance apparently timed for the US Independence Day holiday.
Ban underlined that the missile launches were a violation of UN security Council resolutions and were "totally unhelpful" for fostering renewed talks on its nuclear programme.
"This is deeply regrettable and I am concerned about all that the DPRK is doing," Ban said.
Washington is seeking support for tough enforcement of United Nations sanctions aimed at shutting down Pyongyang's nuclear and missile programmes.
Ban noted that the problems in communicating with Pyongyang had emerged with the first missile launch.
A long-range rocket launch on April 5 was followed by the nuclear test -- the second since 2006 -- on May 25.
In the days after its atomic test, Pyongyang fired six short-range missiles, renounced the truce in force on the Korean peninsula for half a century and threatened possible attacks on Seoul.
Saturday's medium range missile launches came only days after the North on Thursday test-fired four short-range missiles into the Sea of Japan.
The concern expressed by Ban -- a former South Korean Foreign Minister -- contrasted with comments by US Vice President Joseph Biden on Sunday.
Biden dismissed North Korea's latest series of missile launches, saying the communist regime was engaged in "attention seeking" as it faced increasing isolation.
In a commentary, the North Korean ruling party newspaper Rodong Sinmun praised Pyongyang's "army-first policy."
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