Vandals in Santiago attacked four churches before dawn on Friday, throwing homemade bombs that caused minor damage and leaving notes threatening Pope Francis just three days ahead of the pontiff’s visit to Chile next week, Reuters reported quoting police.

The vandals, who are yet to be identified, set fire to at least two of the churches in the nation’s capital city and tossed pamphlets in the street as they fled.

One of the pamphlets read: “Pope Francis, the next bomb will be in your robe,” authorities said.

A fourth church was attacked with what appeared to be an explosive device, but no damage was sustained. No one was hurt in any of the attacks, authorities said.

Francis, who hails from Argentina and is the first Latin American pope, will arrive in Chile on Monday.

A Mass he has planned to hold on Tuesday in a Santiago park is expected to attract more than 500,000 people.