Foreign fighters 70% up says Ban (2)

(ANSA) - New York, September 29 - The number of foreign fighters joining jihadi groups like ISIS has risen by 70% and they are coming from more than 100 countries, United Nations Secretary-General Ban Ki-moon said Tuesday. "The threat posed by extremist groups like ISIS is growing," Ban told a terrorism summit hosted by US President Barack Obama. "This threat to international security requires a united response," he said.