suspected agents -- agents are suspected of acting against syrian edgerton and living in exile. >> they say the four syrians are expected actions incompatible with their diplomatic status. there is also follows the arrest on tuesday of another two syrians. >> on tuesday, by some in the syrian ambassador. i told him clearly that any activity by the syrian state against syrian opposition supporters in germany will not be tolerated. >> in recent weeks, syria opposition supporters have repeatedly demonstrated outside the country's embassy in berlin. the diplomats and their families have been given three days to leave germany. >> our political affairs correspondent joins us. give us a bit more background to this story. >> the german foreign minister implied a connection between these explosions and the arrest earlier in the week of two foreign nationals who have been charged with spying on syrian political activists here. those men who were arrested are not officially at least members of staff of the syrian embassy. otherwise, that would have had diplomatic immunity and the police would not