This ends our live blogging for April 4. Be sure to check back tomorrow for our continuing coverage.
Savchenko "to begin dry hunger strike":
Ukrainian military pilot Nadia Savchenko, who has been sentenced by a Russian court to 22 years in prison, will begin a dry hunger strike on April 6, her defense lawyers say.
"Her demand is her immediate return to Ukraine," Nikolai Polozov, one of the Savchenko's lawyers, wrote on Twitter on April 4.
Polozov had earlier twitted that Savchenko's "health condition is stable. She only drinks water."
Savchenko, 34, was sentenced on March 22 on charges including complicity in the killing of two Russian journalists in eastern Ukraine in 2014. The sentence comes into effect on April 5.
She denies the charges and has gone on several hunger strikes protesting her detention and the court case.
Earlier on April 4, Savchenko's defense team said the pilot reiterated that she would not appeal the verdict, saying she did not recognize the legitimacy of the case against her.
Savchenko says she was seized in eastern Ukraine in June 2014, while fighting with a volunteer battalion against Russia-backed separatists, and taken to Russia illegally.
Ukrainian President Petro Poroshenko has said Kyiv was ready to swap her for Russian prisoners.
But a Kremlin spokesman said that "she will serve her sentence." (Interfax, TASS)
Nadia Savchenko swap now coming?
Poroshenko's response to #Panamapapers revelations:
Here's a Ukraine-related item on the so-called Panama Papers from our news desk:
Ukraine Radical Party Wants Impeachment Probe Into Poroshenko
The head of Ukraine's populist Radical party has called for an impeachment investigation into President Petro Poroshenko over allegations he used an offshore account to avoid tax.
In a televised interview on April 4, Oleh Lyashko said the Anticorruption Bureau (AKB) must investigate Poroshenko for allegedly hiding significant amounts of money in offshore accounts.
According to a massive leak of documents from the Panamanian law firm Mossack Fonseca over the weekend, Poroshenko has been tied to secret offshore companies on the British Virgin Islands.
The AKB said on April 4 that it has no power to begin an investigation against Poroshenko.
The Ukrainian Prosecutor-General's office said it has seen no evidence that Poroshenko committed a crime based on the leaked documents.
Based on reporting on UNIAN and Reuters
Here is today's map of the latest situation in the Donbas conflict zone, courtesy of the Ukrainian Defense Ministry (CLICK IMAGE TO ENLARGE):
