Here is today's map of the security situation in eastern Ukraine, according to the National Security and Defense Council:
Ukraine's Sailors Patrol Tense Sea Border With Russia
Ukrainian coast guards in the Sea of Azov are fully armed and ready for combat -- Russia, and Russia-backed separatists, are close by -- and here, too, the conflict has claimed casualties. (RFE/RL's Ukrainian Service)
Another item from RFE/RL's news desk:
Ukraine Blames Separatists For Bombardment That Injures 8 Civilians
KYIV -- Ukrainian authorities are blaming Russia-backed separatists for a hail of artillery fire that injured at least eight civilians, damaged buildings, and interrupted water supplies in the front-line town of Krasnohorivka over the weekend.
The incident underscored a warning last week by the Organization for Security and Cooperation in Europe (OSCE), which said that the rate of violence in the Ukraine conflict so far this year had more than doubled on a year earlier.
Central Krasnohorivka was hit by at least 12 Grad (Hail) rockets and other heavy artillery fired from territory controlled by separatists early on May 28, according to the Ukrainian Defense Ministry.
The ministry said as many as 14 buildings were damaged or destroyed, including apartment buildings and residential houses.
Donetsk Governor Pavlo Zhebrivskiy posted images on Facebook early on May 28 showing damaged brick buildings and suggesting a hospital and school had been struck.
More than 9,940 people have been killed since fighting broke out between central Ukrainian authorities and Russia-backed separatists in April 2014.
A shaky cease-fire brokered in Minsk regularly gives way to fighting, and the OSCE said at least 44 civilians had been killed and 175 more injured in the Ukrainian conflict zone between January 1 and May 24, before last weekend's violence.
Moscow and Kyiv have each blamed the other for failing to uphold their end of the 2-year-old truce.
Deputy foreign ministers from Germany, France, Ukraine, and Russia are scheduled to meet in Berlin on May 30 "to review the current situation on the ground with regard to the cease-fire and with regard to all other commitments under the Minsk agreements," according to a German government spokesman.
Germany and France brokered the Minsk deal and have held numerous meetings with representatives of Ukraine and Russia, part of a four-way process known as the Normandy Format,
The planned meeting comes a day after talks between Russian President Vladimir Putin and French President Emmanuel Macron at the Palace of Versailles on May 29.
The EU and United States have imposed sanctions on Russia over its actions in eastern Ukraine, where Kyiv and NATO say Moscow fomented unrest in 2014 and has given strong military backing to the separatists who hold parts of the Donetsk and Luhansk provinces.
RFE/RL's Kyiv correspondent, Christopher Miller, has sent us this report on the Yandex raids:
Ukraine Security Service Searches Yandex Offices In 'Treason' Probe
KYIV -- Ukraine’s security service is searching the Kyiv and Odesa offices of Russian Internet giant Yandex as part of a treason investigation, according to a spokeswoman for the security service, the SBU.
The May 29 searches come less than two weeks after President Petro Poroshenko signed a decree banning Yandex and several other Russian sites, including the popular social networks VK -- formerly VKontakte -- and Odnoklassniki.
"Within the framework of the criminal proceedings on [suspicion of] high treason, searches are being conducted at the mentioned companies in Kyiv and Odesa," the SBU spokesperson Olena Hitlyanska wrote on her Facebook page. Treason is punishable by 12 to 15 years in prison and the confiscation of property.
The website MarketingChallenge cited Yandex's press service as saying in a statement that its lawyers had arrived at the offices but were not given any information about the searches. "Within the legal procedures, we are ready to give the authorities all necessary information," the press service said, according to MarketingChallenge.
According to Ukrainian IT news site AIN.ua, staff of both offices were ordered by the SBU to leave the premises while the searches were conducted.
In signing the decree, which was published on May 16, Poroshenko cited the need to combat what he called Russian instruments of information warfare.
The move, which came at the request of Ukraine's National Security and Defense Council and the SBU, added the companies to a long sanctions list, which includes 1,228 individuals and 468 legal entities.
It also sparked a public debate between critics who condemned it as censorship and a blow to freedom of expression and supporters who called it a long-overdue move in defense of national security.
Russia seized the Crimean Peninsula from Ukraine in March 2014, after sending in troops and staging a referendum widely denounced as illegal.
Moscow has also given strong support to separatists whose war against Kyiv's forces has killed more than 9,900 people in eastern Ukraine since April 2014.