Kerry announced he was ending bilateral contacts with Russia after a US-Russia brokered ceasefire broke down after less than a week, when the Syrian regime declared it over and resumed a Russian-backed air offensive against rebel-held eastern Aleppo.
Under the peace agreement, releases have to be stopped if the ceasefire breaks down.
What they would do if the ceasefire broke down again was not made clear.
In April, the worst clashes since a 1994 ceasefire broke out between Armenia and Azerbaijan.
AS NEWS of the ceasefire broke on June 17th, a joyful clamour erupted in Monrovia, Liberia's battle-charred capital.
Since 2011, when a 17-year ceasefire broke down in Kachin state, persistent reports suggest new mines are being laid.
The latest attempt, by the United States, Britain and Turkey, to arrange a ceasefire broke down last month when the PUK, with Iranian weapons and probably Iranian help, launched a successful offensive in the mountainous area north-east of Arbil, the region's capital.
When the ceasefire broke in mid-November, the police were better prepared (though officials are braced for violent retaliation, strikes and protests over Kishenji's death).Nothing suggests the Naxalites are near outright defeat.
Prior to the evacuations, the last ceasefire broke down in October over the bombing of a humanitarian convoy, an act believed to have been carried out by the Russian or Syrian government.
However, he stepped back slightly from arguing for the suspension of the sale of all military equipment to Israel, saying this should only happen if the ceasefire broke down.
