All clear given after Pemex headquarters evacuation in Mexico
June 19, 2013 -- Updated 0411 GMT (1211 HKT)
Mexican soldiers arrive at the headquarters of Mexican oil giant Pemex, following an explosion in February.
- Pemex is Mexico's powerful and much-criticized state oil monopoly.
- An explosion at Pemex headquarters in February killed 37 people
- Thousands of people work at the company's headquarters
(CNN) -- The headquarters of Mexico's state oil was evacuated Tuesday night -- but it turned out to be a false alarm, the company said.
The Pemex Tower in Mexico City was cleared after an unspecified threat, Pemex said on its Twitter feed.
A short time later, the company tweeted, "It was a false alarm."
In February, a deadly explosion at Pemex headquarters killed at least 37 people. Officials said it was caused by a buildup of gas in the basement.
Pemex is Mexico's powerful and much-criticized state oil monopoly.
Thousands of people work at the company's headquarters, which includes a 54-story building. The annex where the February explosion happened is adjacent to the tower.
Part of complete coverage on
July 22, 2014 -- Updated 1435 GMT (2235 HKT)
Hamas' tactics have changed -- now the group is using commando-like tactics, says CNN's Ben Wedeman.
July 20, 2014 -- Updated 1540 GMT (2340 HKT)
Some contend that larger weapons have come into Ukraine from Russia.
July 22, 2014 -- Updated 2151 GMT (0551 HKT)
A nun, an AIDS researcher, an athlete and a family traveling on summer vacation. These were some of the victims aboard MH17.
July 22, 2014 -- Updated 0021 GMT (0821 HKT)
Prince George isn't your average one year old. He started walking before he was one. Oh, and, he's going to be king -- of 16 countries.
July 21, 2014 -- Updated 1136 GMT (1936 HKT)
Former President Bill Clinton acknowledges he got "very close" to helping achieve peace in the Middle East.
July 18, 2014 -- Updated 0621 GMT (1421 HKT)
In an ambitious plan to upgrade urban India, Prime Minister Narendra Modi says he will build 100 "smart cities" across the country.
July 20, 2014 -- Updated 1127 GMT (1927 HKT)
Inspirational, creepy or just weird? CNN meets the 51-year-old man who dresses like a schoolgirl.
July 17, 2014 -- Updated 1100 GMT (1900 HKT)
A British nanotech company has created what it says is the world's darkest material.
July 18, 2014 -- Updated 1112 GMT (1912 HKT)
Yoga, meditation and watching a snake eat a frog alive: these are some of the experiences to be had at this Himalayan yoga retreat.
CNN joins the fight to end modern-day slavery by shining a spotlight on its horrors and highlighting success stories.
Browse through images from CNN teams around the world that you don't always see on news reports.
July 22, 2014 -- Updated 1152 GMT (1952 HKT)
The world's largest flying aquatic insect, with huge, nightmarish pincers, has been discovered in China's Sichuan province, experts say.
Today's five most popular stories