North Korea today test-fired two more missiles, the defence ministry said, further stoking tensions sparked by its nuclear standoff with the international community.
"North Korea launched two missiles this morning," the Joint Chiefs of Staff said in a statement. It follows a series of missile launches earlier this week.
The missiles were launched between 0800 hrs and 0830 hrs (0430-0500 IST ) from Kitdaeryong Base near the eastern port of Wonsan into the East Sea (Sea of Japan), it said.
"The military, on the basis of a strong joint defence alliance with the United States, is fully prepared to fend off any threats or provocations by the North," it said.
An unidentified government official quoted by Yonhap news agency said both of the missiles were believed to be Scuds with a range of 500 kilometres, which would allow the North to strike most of South Korea.
North Korea fired four short-range missiles on Thursday into the Sea of Japan but the range of those missiles was estimated to be only around 120 km.
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"The Scuds fired today impose (a) greater security threat to us because of their longer ranges," the official was quoted as saying by Yonhap.
"Thursday's missile tests were apparently made as part of a military drill but today's launches, which came on the eve of the US Independence Day, are believed to be aimed at political purposes," the official said.