It happened in the middle of the night this week but no one seems to know who did it or why.
Investigators now looking to DNA collected from tin pans .
So far they haven't found a match.
They're also searching social media sites for any clues to who may have made the switch.
Some one-thousand protesters gathered in Time Square to denounce the deadly violence in the Gaza strip.
The group later marched to the Israeli consulate chanting "Free Palestine."
It was all part of a so-called International Day of Protests against Israel.
Many of the demonstrators identified themselves as Palestinian-Americans and American Muslims with family and friends living in Gaza.
A US Embassy in Libya was evacuated early Saturday.
The State Department moved personnel in response to increased violence in the country's capital.
The move has been in the works for days.
About 150 personnel were driven across the border now away from harm.
The Embassy's previous location in Tripoli was attacked in 2011.
This evacuation comes almost two years after an attack on a US Government facility in Benghazi, where four Americans were killed.
An uptick in shelling overnight sent residents packing Saturday.
Hundreds of cars jammed roads leading out of Donetsk City.
War-weary residents are trying to get out the area that has sustained heavy fighting for weeks.
Trains are no longer running in or out of the city that is a stronghold for Pro-Russia rebels.
The United Nations said over 141-thousand Ukrainians have fled to Russia to escape the fighting in eastern Ukraine.
In Gaza, a brief respite from fighting has led to the discovery of dozens of bodies.
More than forty victims were found in areas too dangerous to enter in recent days due to the fighting between Hamas and Israel.
Both sides agreed to a 12-hour humanitarian cease-fire Saturday morning.
This, as US Secretary of State John Kerry leads an international effort to get Israel and Hamas to stop the airstrikes and rocket fire for at least seven days.
More than 1,000 people, mostly civilians, have died in the fighting.