The Dutch Health Council said Wednesday that while it appears mobile phones are not harmful, more investigation into the subject is needed.

In a report, the electromagnetic fields committee said that a study about the effects of radiation from cell phones was not conclusive or did not meet necessary scientific criteria. The committee examined the issue over the past two years.

"There does not, at this stage, appear to be any association" between long-term use of a mobile phone and tumors, the group reported.

Copyright 2005 by United Press International