University Programming and Activities served Lambda Chi Alpha President Bryan Hanson with temporary papers of suspension Thursday, pending an investigation of the fraternity, said Michelle Emmett, associate vice president of Student Affairs.

NIU, UP&A, the University Judicial Office and the fraternity’s national representatives all are investigating individuals in the fraternity after allegations of hazing, drug dealing, intimidation, physical abuse and alcohol abuse surfaced on Monday.

“We’re calling a time out to take a look at what they’re doing,” said Eric Richards, director of chapter services at the national headquarters.

University Police Chief Don Grady said the allegations were severe enough for the headquarters to suspend the NIU chapter.

Some of the members within the house were being cooperative with police, but others weren’t, he said.

UP also are investigating a possible fight between two members of the fraternity, Grady said.

When asked about the possibility of the fraternity’s members’ welfare being in jeopardy, Grady responded with uncertainty.

“People being threatened, people fearing for their lives, I suppose it could be true,” Grady said. “But I’m not sure.”

Grady refrained from disclosing more information about the matter because of the threat of jeopardizing the investigation.

Greek Activities Adviser Chris Juhl said the most important issue he is facing is protecting all parties involved.

“Obviously these allegations are somewhat involved if we’re pursuing it to this extent,” Juhl said.

Juhl wants to resolve the matter as soon as possible, he said.

“It hasn’t been a fun week,” he said.

Hanson declined to comment on the investigation.