The Latest: Estonia summons Russian envoy over Ukraine

A Ukrainian sailor, right, is escorted by a Russian intelligence agency FSB officer to a court room in Simferopol, Crimea, Tuesday, Nov. 27, 2018. The Russians seized the ships and their crews, who are expected to face a court hearing later Tuesday in the Crimean capital of Simferopol. (AP Photo)

On Sunday near Crimea, Russian border guards rammed into and opened fire on three Ukrainian navy vessels traveling from the Black Sea toward a Ukrainian port.

MOSCOW – The Latest on raised tensions between Russia and Ukraine (all times local):

1:25 p.m.

Estonia has summoned the Russian ambassador to Tallinn over Russia's use of military power against Ukrainian sailors and vessels in the Kerch Strait.

The Estonian Foreign Ministry says Aleksandr Petrov was told that Russia must immediately return the three vessels and release the crew.

The ministry said Wednesday that under international law, Russia must ensure that vessels from any countries can pass through the strait unhindered.

Estonia, a former Soviet republic, has reacted sharply to the events near Crimea, with President Kersti Kaljulaid saying Tuesday the attack constitutes "war in Europe."

After Moscow's annexation of the Crimean peninsula from Ukraine, Estonia, like its Baltic neighbors Latvia and Lithuania, fear that they and other former Soviet republics could be next.

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12:30 p.m.

Ukraine has released what it says is the exact location near Crimea where its vessels were fired on and seized by Russia over the weekend, showing that they were in international waters.

The statement by Ukrainian officials contradicts Russia's argument that it was chasing the ships because they were violating its territorial waters. Russia considers Crimea, which it annexed in 2014, part of its country.

The Ukrainian ministry in charge of occupied territories on Wednesday published what it claimed were the exact coordinates of where the military vessels "Berdiansk", "Nikopol", and "Yany Kapu" were when they were attacked by Russia, putting them outside the 12-mile zone of territorial waters.

Russian border guards have captured the vessels and the crews. Officials say they will try the seamen for violating the Russian border and that they do not consider them prisoners of war.

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10:20 a.m.

A military official says Russia will boost the defense of the occupied Crimean peninsula with more anti-aircraft missiles.

The Interfax news agency on Wednesday quoted Col. Vadim Astafyev, the top Defense Ministry official in Russia's south, as saying that Russia will add one S-400 anti-aircraft missile system to the three already deployed in the peninsula.

The announcement comes three days after Russian border guards fired on three Ukrainian vessels and seized them and their crews. The first overt military confrontation between the two neighboring countries has raised the specter of a major conflict.

Ukraine said its vessels were operating in line with international maritime rules, while Russia alleged they had failed to get permission to pass.