Officials from North and South Korea resumed crucial talks Wednesday about reopening a shuttered factory park the rivals jointly ran until Pyongyang pulled out its workers in April, AP reported. The industrial complex in North Korea's third-largest city, Kaesong, had been the last symbol of cooperation between the Koreas until Pyongyang halted operations during a torrent of threats earlier this year that included vows of nuclear strikes on Washington and Seoul. Six rounds of talks on restarting operations there went nowhere, and the last meeting ended in a scuffle between North Korean and South Korean delegates. Ties have improved somewhat in recent weeks, and North Korean state media have published recent articles expressing eagerness for better relations.