Finnish telecommunications company Nokia on Wednesday said it has filed suit against Apple in both the United States and Europe, charging the U.S.-based smartphone giant has infringed on a number of its patents.

Nokia said initial suits were filed with courts in Dusseldorf, Mannheim, and Munich, Germany, and the U.S. District Court for the Eastern District of Texas, but noted the company is in the process of filing further actions in additional unspecified jurisdictions.

In dispute are 32 patents spanning technologies such as display, user interface, software, antenna, chipsets, and video coding used in smartphones, tablets, and other devices. Nokia said Apple signed a license agreement in 2011 covering some patents in the Nokia Technologies portfolio, but has subsequently refused to sign agreements to license other patented Nokia technologies used in several Apple products.

“Through our sustained investment in research and development, Nokia has created or contributed to many of the fundamental technologies used in today’s mobile devices, including Apple products. After several years of negotiations trying to reach agreement to cover Apple’s use of these patents, we are now taking action to defend our rights,” Ilkka Rahnasto, head of Patent Business at Nokia, said in a statement.

Reuters noted the move comes just one day after Apple filed suit against Acacia Research Corp. and Conversant Intellectual Property Management Inc. for allegedly conspiring with Nokia to extort revenues “unfairly and anticompetitively from Apple.”

Nokia stocks were down nearly 2.5 percent early Wednesday afternoon on the news.