Russia says Ukraine’s decision to declare martial law could lead to hostilities in eastern Ukraine. Russian President Vladimir Putin spoke with German Chancellor Angela Merkel by telephone Tuesday. He warned Ukraine against carrying out what he called any “reckless acts.” His comments came two days after Russian forces seized three Ukrainian ships and their crews in the Black Sea. Ukraine’s parliament voted on Monday to approve martial law in 10 of 27 regions, or administrative areas, for 30 days. The declaration is to take effect on Wednesday. The order would give the military increased powers. It comes as Ukrainians prepare for presidential and parliamentary elections next year.