Juvenile beaten up in fight with 4 others outside Navy Pier, police say

CHICAGO (WLS) -- Chicago police said a juvenile was beaten up outside Navy Pier after it closed Sunday night.

The victim got into an argument with four other people just after 10 p.m. Sunday, who ran off after the fight. Police said the boy did not appear to know his attackers.

The victim was taken to Northwestern Memorial Hospital. Police said injuries do not appear to be life-threatening. No one is in custody.

Navy Pier increased security over the weekend after a brawl involving dozens of visitors Friday night, during the ongoing Winter Wonderfest. No one under the age of 18 is allowed to attend the festival without a parent or guardian.

Five people were arrested and charged with reckless conduct after the fight.