GENEVA — Diplomats will be pressing Friday for a human rights investigation into Libyan leader Moammar Gadhafi’s violent crackdown on protesters and for the suspension of Libya from the U.N.’s top human rights body.

The efforts at an emergency meeting in Geneva could also set the stage for other possible international sanctions.

Switzerland ordered the immediate freeze today of any Swiss assets belonging to Gadhafi or his entourage, saying it wanted to prevent the possible misuse of state funds. The Swiss government made the decision “in view of the developments” in Libya, where security forces have launched violent reprisals against anti-government protesters.

European Union nations added a recommendation to suspend Libya from the U.N.’s Human Rights Council to a draft resolution being circulated today ahead of Friday’s meeting.

The EU also wants the rights council to approve a U.N.-led probe into “gross and systematic violations of human rights by the Libyan authorities” and to condemn violence against protesters and others as possible crimes against humanity.