Huawei faces increased official scrutiny in Europe amid US allegations that it poses a security threat. The company rejects the charges Telenor (TEL.OL) reiterated on Sunday Huawei [HWT.UL] would be involved in building Norway's 5G network along with Ericsson (ERICb.ST), one of several companies to continue working with the Chinese company despite US pressure. Still, on Friday, the head…