One of the suspects praised the Boston bombing , Spain 's interior minister says . Minister : Police consider the suspects to be `` lone wolves , '' like those in Boston . " Comment: The FBI is investigating a possible connection between two men who were arrested on Friday and are suspected of being involved with an Islamic extremist group that has claimed responsibility for several recent attacks against U.S. READ MORE They have been in touch with Islamist extremists in Mali , Interior Ministry says .
One of the suspects praised the Boston bombing , Spain 's interior minister says . Minister : Police consider the suspects to be `` lone wolves , '' like those in Boston . " Comment: The FBI is investigating a possible connection between two men who were arrested on Friday and are suspected of being involved with an Islamic extremist group that has claimed responsibility for several recent attacks against U.S. They have been in touch with Islamist extremists in Mali , Interior Ministry says .