An explosion broke windows outside a Citigroup-owned bank in Mexico's capital late on Sunday, but nobody was injured, authorities said.
Police found pieces of aerosol cans and burnt cardboard, the apparent remnants of a bomb, outside the branch owned by US bank Citigroup.
No one has taken responsibility for the late-night bombing and nothing was stolen from inside the bank, Mexico City Public Security Minister Joel Ortega told television news.
In recent years, small bombs have occasionally been set off outside foreign-owned bank branches in and around Mexico City.
Two years ago, small leftist guerrilla groups took responsibility for an explosion outside of a bank branch owned by Canada's Scotiabank. (Reuters)
Citigroup branch in Mexican capital damaged by bomb