STOCKHOLM, Sweden--(BUSINESS WIRE)--Regulatory News: Tele2 AB (Tele2), (NASDAQ OMX Stockholm: TEL2 A and TEL2 B) today announced investments into its Croatian mobile network. The investments are focused on making 3G available on all sites across the network, as well as adding additional sites to improve the population coverage. As a result of solid customer growth and improved profitability, Tele2 now declares a new investment cycle for its operations in Croatia. The network upgrade will be don