(WWLP) – Global stocks tumbled Monday, after Greece closed its banks and limited the amount of money Greek citizens can withdraw.

Wall Street had its worst day of the year, with the Dow dropping 350 points.

Greece took the drastic step of closing the banks for one week after bailout talks with its creditors broke down this weekend. Greeks lined up at ATMs outside closed banks Monday.

Raymond James Financial Adviser Mark Teed told 22News international travelers should keep a close eye on their wallets. “If I were a tourist, and I was going to Greece, I would be concerned if you were bringing cash, that you might be a target. Right now, the government is limiting them to 60 Euros from an ATM machine so people need cash desperately.  I would be concerned about that.”

Teed told 22News this is a political and creditor event that he hopes will be resolved this week.