India, May 30 -- European stocks traded higher on Friday despite the latest U.S. court rulings on President Trump's "Liberation Day" tariffs adding another layer of uncertainty.

"We are already negotiating in [a] quite uncertain environment, with things changing quite rapidly," Valdis Dombrovskis, European Union commissioner for economy, told CNBC's Karen Tso.

He described the tariff situation as "urgent," and reiterated that the EU was committed to agreeing to a negotiated deal with the U.S.

Meanwhile, investors shrugged off data from Destatis showing that German retail sales decreased 1.1 percent on a monthly basis in April, in contrast to the 0.9 percent rise in March. Sales were expected to grow 0.3 percent.

Year-on-year, retail sal...