Russian soldiers were on patrol in Sevastopol, Crimea, on Sunday.

afp

Russian soldiers were on patrol in Sevastopol, Crimea, on Sunday.

Protest leader Vitali Klitschko greeted people in Kiev during a demonstration Sunday.

YURIY DYACHYSHYN/afp/getty images

Protest leader Vitali Klitschko greeted people in Kiev during a demonstration Sunday.

Soldiers took up positions around a Ukrainian military base in Crimea.

sean gallup/getty images

Soldiers took up positions around a Ukrainian military base in Crimea.

Ukrainians gathered in a rally at Kiev's Independence Square on Sunday.

Sergei Chuzavkov/Associated Press

Ukrainians gathered in a rally at Kiev's Independence Square on Sunday.

Ukrainians held portraits of people killed during protests in Kiev’s Independence Square on Sunday.

Sergey Dolzhenko/epa

Ukrainians held portraits of people killed during protests in Kiev’s Independence Square on Sunday.

A Russian navy choir performed in front of pro-Russian Crimeans in Sevastopol.

Baz Ratner/Reuters

A Russian navy choir performed in front of pro-Russian Crimeans in Sevastopol.

Pro-Russian people stopped and inspected vehicles on a road to Sevastopol in Crimea.

sean gallup/getty images

Pro-Russian people stopped and inspected vehicles on a road to Sevastopol in Crimea.

A man carried a flag and wore a sign that said “Motherland and Freedom!” in Moscow in support of Russians in Ukraine.

dmitry serebryakov/getty images

A man carried a flag and wore a sign that said “Motherland and Freedom!” in Moscow in support of Russians in Ukraine.

Kerry to go to Ukraine on Tuesday

Secretary of State John Kerry will meet with government officials in the Ukrainian capital amid tensions with Russia.

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/03/02/BostonGlobe.com/Foreign/Images/2014-03-02T174235Z_1373369551_GM1EA3304N901_RTRMADP_3_UKRAINE-CRISIS.jpg Ukraine mobilizes as Russia occupies Crimea

World leaders rushed to find a diplomatic response to rising tensions in Ukraine.

Roee Grutman, 17, played outside the day before he died.

A Newton boy left this life without a note or clue

Roee Grutman, 17, became the third student in Newton to commit suicide this academic year, following two girls in October.

jacob thomas

The 2014 Academy Awards

Oscar picks: Good as gold

Who will win and who should win? Ty Burr and Janice Page play the Academy odds.

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/02/14/BostonGlobe.com/Arts/Images/HER-FP-0880-5833.jpg Overlooked by Oscar

Here are 10 instances where the Academy of Motion Picture Arts and Sciences overlooked a worthy nominee from last year.

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/03/02/BostonGlobe.com/Metro/Images/josh150-11267.jpg Correction chief, staff rebuked in patient death

Governor Patrick announced disciplinary measures in the case of a mentally ill man who died in restraints at Bridgewater State Hospital.

Opinion

TOM KEANE

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/02/27/BostonGlobe.com/EditorialOpinion/Images/0302oped_keane.jpg Missing the train

A Harvard study of rail commuters proves that it’s connectedness, not diversity, that brings harmony.