By Narae Kim JINDO, South Korea (Reuters) - South Korean coastguards and navy divers resumed their search on Thursday for nearly 280 people still missing after a ferry capsized in what could be the country's worst maritime disaster in over 20 years. Nearly 340 of the passengers were teenagers and teachers from the same school near the capital Seoul on a field trip to Jeju island, about 100 km (60 miles) south of the Korean peninsula. Parents of missing children faced an agonizing wait for news as they gathered in Jindo, a town close to where ferry capsized. I hope the government does everything to bring these kids back to their mothers." At the dockside in Jindo, women sat and stared out at the black, calm sea before them, quietly sobbing.