North Korea may have given Russia shoddy weapons built in the 1970s to fire at Ukraine

• Russia is believed to be using North Korean missiles and shells in its invasion of Ukraine. 
• North Korean shells are often defective and blow up before being fired, reports claim. 
• South Korean intelligence said Monday it suspects the weapons may date from the 1970s. 

Russia is using North Korean artillery shells in its invasion of Ukraine that may have been made in the 1970s, South Korean media reported.

South Korean intelligence, the National Intelligence Service (NIS), told news agency Yonhap that it's reviewing reports that North Korea has supplied its ally Russia with weapons made five decades ago.