A judge says she's not sure whether lawsuits filed to block a Nebraska city's ban on hiring and renting to illegal immigrants should be heard in federal or state court.

U.S. District Judge Laurie Smith Camp on Wednesday gave attorneys for the American Civil Liberties Union and the Mexican American Legal Defense & Educational Fund two weeks to submit briefs explaining why their suits belong in federal court.

The move delays any ruling about whether to block the city of Fremont's voter-approved ban.

But it still won't go into effect this week. The City Council has temporarily suspended the ordinance until the lawsuits are resolved.

Some in Fremont say the ordinance makes up for what they call lax federal law enforcement. Others argue it could fuel discrimination.