Defiant Obama vows to fight Foley killers

US President Barack Obama has pledged to continue attacking the group responsible for the death of journalist James Foley, despite its threats to kill another American hostage.

The US military continued its airstrikes against the group as Obama denounced the group as a “cancer” threatening the entire region. “We will be vigilant and we will be relentless,” he said.

Calling for a global response to the group that now controls territory in both Iraq and Syria, Obama condemned the group’s murder of Foley, whose death he said had left America heartbroken.