BETHLEHEM, Pa. (AP) — Police say they cited 20 more Lehigh University students for underage drinking over the past weekend, as Bethlehem police and campus officers continue efforts to curb drunkenness.

Police say five of the students busted over the weekend had to be hospitalized for high alcohol content.

The school has continued to crack down on drinking after four students nearly died and needed medical treatment for alcohol poisoning last school year. The school has temporarily suspended two fraternities and warned two others about possible discipline for drinking-related incidents so far this academic year.

Bethlehem police Chief Mark DiLuzio says complaints about loud parties indicate some students aren't getting the message. He says police don't want someone to get seriously injured or die "in order to get the message across."