April 21 (SeeNews) - Wireless operator TELE2 Croatia, part of Swedish telecommunication group Tele2 narrowed its negative EBITDA (earnings before interest, tax, depreciation and amortisation) to 41 million Swedish crowns ($5.7 million/4.2 million euro) in the first quarter, from 91 million Swedish crowns a year ago, the parent company said on Wednesday.