WATCH: Videos Capture Arrests Made As MetLife Stadium Concert Gets Rowdy

The Hot 97 Summer Jam concert on Sunday night got rowdy as State Police said they made an undisclosed number of arrests outside MetLife Stadium.

Security personnel at one of the entrance gates to MetLife Stadium were confronted by crowds attempting to “illegally enter” the sold out Summer Jam concert by climbing over fences, police said.

The gates were shut and troopers on site called for assistance from several nearby stations to help maintain order, police said.

According to multiple reports, the Hot 97 Summer Jam concert rowdiness prompted State Police to use tear gas outside the gates, the Asbury Park Press reported.

>>Related: Riots Reported at Summer Jam Concert at MetLife Stadium

A state police armored vehicle tear gassed the crowd because concert goers, angry the gates were closed, threw bottles, the Asbury Park Press said.

State Police officers were wearing riot gear and had their batons out, according to NBC New York. NBC New York reported tasers may have been used.

Summer Jam 2015, billed as “the hottest hip hop event of the year,” was headlined by Kendrick Lamar and Chris Brown.

Musical performances continued inside while the crowds were dispersed,ABC 7 reported. Several arrests were made, according to ABC 7.

“Major disturbance at Summer Jam -- fans vs State Police,” @ChrisFHJordanTweeted.

Photo: YouTube video from @SarahDuvi