"The occupiers are deliberately beating residential areas where there are no military facilities," said Kharkiv Governor Oleg Synegubov.
Russian President Vladimir Putin added that he is open to dialogue with Ukraine but only if all of Russia's demands are met.
The attacks are believed to have been carried out by Allied Democratic Forces, an Islamic extremist group, a police spokesperson said.
"Kaczynski wrote that he and his brother needed advice on finding 'a small plot of land, in a location as remote from civilization as possible," Jack Epstein said.
the president contradicted his message of unity by claiming "globalists" were hurting the economy.
A lawmaker said it was unlikely that a roommate would be unaware of the bombing plot while sharing a home with the suspected bomber.
Many of the attacks occurred during South by Southwest, when much of the music and movie world descends on Austin.
No group has yet claimed responsibility but the Islamic State has stepped up attacks against Christians in Egypt.
Militant cell changed its target to Brussels as police investigation into Paris attacks unfolded.
Bilal El Makhoukhi was released from custody just last month after 2015 conviction.
Source: Faycal Cheffou was believed to be caught on security cams at Brussels airport.
Risk for attacks is clear given the cheap, simple manufacturing of ISIS' weapon of choice.
Syrian President Bashar al-Assad has meanwhile told refugees to come home.
Omar Faraj Saeed Al Hardan faces charges for allegedly planning to remotely detonate bombs in trash cans at Texas malls.
Suspicion is likely to fall on the militant Islamist group, which has attacked the city several times during a six-year insurgency.
U.S. authorities described the Saudi man as a top Osama bin Laden deputy
Two suicide bombings targeted Shiite mosques regularly attended by supporters of Houthi rebels.