A man walks past a capsized ship at a marina in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica TPX IMAGES OF THE DAY

A fisherman adjusts a sun umbrella in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

Pensioners rest on a beach in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

A pensioner peels a peach in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

A man works in a scrapyard at a recycling company in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica TPX IMAGES OF THE DAY

A worker pushes an old car inside a car repair shop in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

A man rests while leaning on a motorbike in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

Two police officers ride on a motorbike passing an old building in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

A man works on a ladder at a closed shop in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

A man paints at his house in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

A Greek flag flutters atop a house in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica 

Books lie on the floor of an abandoned factory in the town of Elefsina, near Athens, Greece June 30, 2015. In a poll released on July 1, 54 percent of Greeks showed that they would heed the advice of leftist Greek Prime Minister Alexis Tsipras and vote in the Greek referendum against new tough conditions for financial aid in the hope that creditors would compromise. Picture taken June 30, 2015. REUTERS/Marko Djurica