Via YLE:
A pig's head was delivered to the Helsinki offices of the Somali League on Monday, according to League Chairman Abdirashid Awad Dirie. Police have opened a criminal investigation into the incident as a case of defamation.
Most Somalis are Muslims and do not eat pork. The pig's head sent to the Somali League office from Tampere was accompanied by a note wishing a Merry Christmas. The sender of the parcel was marked as ”free thinkers."
(source)