New York: Pope's visit and the presence of many world leaders at the same time in New York has developed a state of high alert.

Pope Francis spoke at the plenary before the world leaders could assume the stage for the summit. Several streets around the UN were blocked and pedestrians were not allowed in without credentials or proof of living in the area.

Many with credentials were made to take long diversions to get to the appropriate UN entrance. Package delivery services warned customers that in some areas there would not be deliveries till next week.

Boats from security forces patrolled the East River behind the UN building. Visitors were subjected to at least three searches before they could enter the General Assembly hall.

Personnel from half-a-dozen New York City and federal law enforcement agencies were deployed for the security operations. They were backed by bomb-sniffing dogs and also by various agencies.

(With inputs from IANS)