NATO Summit

3 Polish men held for planting explosive under police cars

Three men have been caught red-handed in Poland while planting homemade explosives under two police cars in Warsaw, officials said Wednesday.

It's the second case since Thursday in Poland of homemade explosives threatening public security. Poland is to host the NATO summit and a visit by Pope Francis in July.

Police spokesman Mariusz Mrozek said the men, aged between 17 and 35, were linked to anarchist groups. He says they have not confessed to having tried to destroy cars Monday night in a police parking lot in the Wlochy district.

The police were tipped that an attack was planned on a police station and caught the men as they were planting containers with...