The minister did not produce a figure over how many Latvians have gone on to fight to Syria and other armed conflicts.
"We won't be talking about [exact] numbers, but he [Latvian Muslim Oļegs Petrovs] is not the only person [who went to fight abroad]," said the Interior Minister.
"We see that this is not happening on a massive scale in Latvia. So we have to try to keep it at a very low level. We cannot compare our situation with that in other EU countries where there are thousands of such people," said Kozlovskis.
"We are doing everything we can so that Latvia does not have to suffer tragedies like [the St Petersburg attack]," said Kozlovskis.
Several Latvians have gone to fight in armed conflict abroad, including two young people, former Muslim leader Oļegs Petrovs, as well as people from Ludza who went to fight among the ranks of pro-Russia separatists.