Refugees arrive on the shores of Lesbos Island after making the dangerous crossing from Turkey on the morning of March 20, 2016 near Mitilini, Greece.
A woman in shock is cared for by other refugees and volunteers after arriving on Lesbos Island on March 20, 2016 near Mitilini, Greece.
Volunteer rescue workers direct a refugee boat as it arrives on Lesbos Island on on March 13, 2016 near Mitilini, Greece.
An emotional family is assisted by a volunteer as they arrive on Lesbos Island on March 20, 2016 near Mitilini, Greece.
Discarded lifejackets are collected after a refugee boat landing on March 17, 2016 near Mitilini, Greece.
A migrant tends to her baby, with the help of aid workers, minutes after arriving on Lesbos Island on March 19, 2016 near Mitilini, Greece.
Refugees begin to exit a severely overcrowded dinghy as they arrive on Lesbos Island on March 20, 2016 near Mitilini, Greece. This boat contained approximately 71 people, including two men who died on the journey.
Amina Ramadan is cared for by a volunteer lifeguard as rescue workers attempt unsuccessfully to resuscitate her husband Mohamed moments after arriving on Lesbos Island on March 20, 2016 near Mitilini, Greece. Her boat contained approximately 71 people, including another man who also died on the journey.
Refugees throw firewood out of a large dump truck at refugee camp on the Macedonian border on March 6, 2016 in Idomeni, Greece.
Pakistani refugees huddle together to stay warm while announcements are made by aid workers about changing conditions and policies at Better Days for Moria Refugee camp on March 16, 2016 near Moria, Greece.
Migrants climb an embankment at a refugee camp on the Macedonian (FYROM) border on March 6, 2016 in Idomeni, Greece.
Refugees fight using rocks and fists at a camp on the Macedonian (FYROM) border (seen in the background) on March 7, 2016 in Idomeni, Greece. The fight over living space broke out as migrants waited for EU Leaders to make a decision on the Balkan refugee route.
A woman dries clothes at a refugee camp near the Macedonian (FYROM) border on March 8, 2016 in Evzoni, Greece.
Sidra, a 10 year-old Syrian refugee, cries as tensions rise near a gate in the fence at a refugee camp on the Macedonian (FYROM) border on March 6, 2016 in Idomeni, Greece.
Greek police arrive at a gate in the fence to respond to rising tensions as several refugees were let through the Macedonian (FYROM) border on March 6, 2016 in Idomeni, Greece. Approximately 50 refugees were let through on the 6th, or less than 1% of the estimated 13,000 people housed in the camp.
Pakistani refugees stage a protest on March 16, 2016 at the Better Days For Moria refugee camp near Moria, Greece. Non-Syrian and non-Iraqi refugees, so-called "economic refugees" are effectively stuck on Lesbos - to take a ferry off the island, they need to register with authorities, but registering with authorities will ultimately result in their deportation.
A young boy washes himself with a bucket in a tent at a refugee camp on the Macedonian (FYROM) border on March 11, 2016 in Idomeni, Greece.
Refugees carry a man in a wheelchair across a muddy expanse at a camp on the Macedonian (FYROM) border on March 8, 2016 in Idomeni, Greece.
Manawar Iqbal, 28, from Lahore; Pakistan, poses for a portrait at a refugee camp on the Macedonian (FYROM) border on March 9, 2016 in Idomeni, Greece.
A refugee waves a German flag while leading chants imploring authorities to open the border at a refugee camp on the Macedonian (FYROM) border on March 7, 2016 in Idomeni, Greece.
Lana, 10, an Iraqi refugee, poses for a portrait while holding her brother Hariad, 2 months, at a refugee camp on the Macedonian (FYROM) border on March 6, 2016 in Idomeni, Greece.
A refugee holds on to a small gate in fence securing the Macedonian (FYROM) border on March 8, 2016 in Idomeni, Greece. No one has been let through the Idomeni crossing since March 6.
A child leaps over a puddle at a refugee camp on the Macedonian (FYROM) border on the morning of March 8, 2016 in Idomeni, Greece. Recent rains have soaked residents and turned the ground to mud in the camp.
Refugees hold up their papers in the hopes that they'll be one of the approximately 50 let into Macedonia at a refugee camp on the Macedonian border on March 6, 2016 in Idomeni, Greece.
Mustafa Dawa, who has voluntarily taken on the responsibility of providing Muslim burials to the refugees who die attempting to cross the Aegean Sea from Turkey, says a quick prayer over the nearly 70 graves he's dug so far on March 13, 2016 near Michos, Greece. The graveyard is built on land provided by local authorities after an original cemetery reached capacity, leaving bodies to languish in the local morgue.
Refugees sit a few feet from the fence on the Macedonian border on March 6, 2016 in Idomeni, Greece. Hundreds waited, hoping to be part of the approximately 50 refugees who are let into Macedonia each day.
Refugees charge their cellphones in a cafe at a train station adjacent to a refugee camp on the Macedonian (FYROM) border on March 9, 2016 in Idomeni, Greece.
Refugees warm themselves on a fire at Better Days for Moria camp on March 19, 2016 on Lesbos Island near Moria, Greece.
All images copyright Pete Kiehart or The San Francisco Chronicle unless otherwise noted. Don't steal photos.