Bulgaria said it had detained 125 foreigners in the capital Sofia for illegally crossing into the country without submitting requests for asylum, signalling its determination to tackle an influx that has overwhelmed its neighbours. Georgi Kostov, secretary general of the interior ministry, said the migrants, detained late on Wednesday night, would be questioned and may be granted refugee status. Tens of thousands of migrants, most of them fleeing war and hardship in Syria, are trying to reach Hungary through the Balkans from Greece via Bulgaria's neighbours, non-EU Macedonia and Serbia.