The Boston Police Department has tweeted that a man is in custody after two unattended backpacks were found near the Boston Marathon finish line, a year on from the bomb attacks.
More top news
The bombs, which are designed to penetrate military bunkers, completely destroy buildings and leave people buried under tons of rubble.
Ibrahim Halil Dudu had just recently fled the war-torn country when his master sewing skills were desperately needed in his new home.
A police officer who sparked a terror alert by making a hoax 999 call to his own force has had his "unduly lenient" jail term increased.