A man was captured by police about 3:15pm on Saturday and was being questioned in relation to the incident.
Feltman met with Myanmar's de facto leader Aung San Suu Kyi and military commander-in-chief General Min Aung Hlaing, and was taken on a plane to fly over Rakhine where he saw torched villages.
"Ladies and gentlemen, I hereby declare Marawi liberated from the terrorists' influence that marks the beginning of the rehabilitation," Duterte said.
In late August, Annan presented the final report of an advisory commission on Rakhine state that he chaired at the request of Myanmar's de facto leader Aung San Suu Kyi.
The council meeting will measure the level of support Suu Kyi still enjoys with Western allies after her nationwide address last week failed to quell the outrage.
“We’ve not declared war on North Korea,” White House spokeswoman Sarah Sanders said Monday. “And frankly the suggestion of that is absurd. We continue to seek the peaceful denuclearisation of the Korean Peninsula.”