** Shares in Metsa Board METSB.HE fall 6% after the Finnish forestry firm warned of an operating fall in Q2, citing an impact from talks over tariffs in the U.S. and weak pulp market
** Metsa expects Q2 comparable operating loss of about 25 million euros ($29.38 million); in April it said it expected the number to be weaker than the profit of 23 million euros booked for Q1
** It cites weak demand for pulp both in Europe and in China, and says uncertainty over the tariffs affected the purchasing behaviour of its clients
** Finnish peer Stora Enso STERV.HE falls 2.5%, UPM-Kymmene UPM.HE is down 1%
($1 = 0.8510 euros)
(Reporting by Boleslaw Lasocki)
((boleslaw.lasocki@thomsonreuters.com; +48 58 769 66 00;))