Many are questioning why the cranes can't be moved, Miami officials said Tuesday in a tweet.
It wasn't immediately clear whether either collapse caused damage or injuries, CNBCreported.
In Miami, Jackson Health System alerted women who are at least 34 weeks pregnant or who have a high-risk pregnancy that they may take shelter in one of three of its hospitals, as long as they have registered with the hospital in advance. Here in Miami, our Alex Perez was with one of those crews securing one of those massive cranes.
A second crane collapse was later reported at a building under construction on Northeast 30th Terrace. Maurice Pons, deputy director of the city's building department, said in a statement then that he "would not advise" riding out the storm near one of the cranes.
City officials last week said that the cranes could not be tied down or moved.
The National Hurricane Centre said Irma's winds were at 177 km/h, just below major hurricane status, as the centre of the still unsafe and wide storm moved farther inland late today.
Although it is likely that the eye will move near or over the Lower Keys Sunday morning, its angle of approach to the west coast of Florida makes it hard to pinpoint exactly where Irma will cross the Florida Gulf Coast. Gusts over 90 miles per hour (145 kph) were reported at Miami International Airport.
The boom of the crane snapped off and is now still connected to the tower, but is hanging off the side of the building.
Whiteman said videos of the first collapse posted on social media showed a tower crane that appeared to have lost its jib or boom, though its mast was still standing.
Even without bearing its full force down on Miami, Irma turned Brickell into a new environment, complete with rivers and wind-whipped waves.
Without the arms and counterbalances, only the cranes' towers would have been left standing, and those are extremely strong, Mr. Barth said on Sunday.
Dera Sacha Sauda headquarter is spread over 800 acres and houses educational institutions, markets, hospital and stadium. She had said that prior to her exploitation, she would see some of the girls coming out of the 'gufa' weeping.
A South Korean player had won each of the past five LPGA tournaments, dating back to Park Sung-hyun's victory at the U.S. Henderson, edged out Lewis by four strokes for the championship and a $195,000 share of the winnings.
The automaker also used the event to announce a commitment to a fully electrified lineup as well as unveil an electric E-Type . Jaguar just unveiled the fully electric E-Type Zero at its Tech Fest in London, and my goodness is it gorgeous.
It was announced on Monday that after a several season absence, Burke would be returning to the competition. He's only the second confirmed name for the season after Drew Scott from the show Property Brothers .
The U.S. territory of Guam is home to key military bases and strategic long-range bombers that North Korea finds threatening. On Tuesday, North Korea provoked worldwide alarm after it fired a mid-range missile over the Japanese island of Hokkaido.
For example, support for nuclear armament and an American antimissile defence system in South Korea continues to grow. Pacific Fleet, claimed this week that America's North Korean strategy of sanctions and diplomacy has worked so far.
One person who played with Cravens in the past and considers him a friend said he was not surprised when he heard the news Sunday. The Washington Redskins reportedly had to talk Su'a Cravens out of retiring this weekend, according to ESPN's Adam Schefter .
Pennywise, pound the box office. 'It' looks like a hit
Made for about $35 million, "IT" stars Bill Skarsgard as the evil clown Pennywise , who terrorizes children in Derry , Maine . This time, audiences get a front row seat to how unsafe Pennywise is and it sets the tone for the rest of the film .
China calls for halt to THAAD deployment
A THAAD battery normally consists of six launchers, but only two have been operational so far at the site in rural Seongju. Russian president Vladimir Putin has condemned North Korea's latest nuclear test as "provocative".
US Federal Reserve Vice Chairman Fischer Resigns
Yellen's predecessor, Ben Bernanke, served two terms from 2006-2014, spanning both the Bush and Obama presidencies. His resignation creates yet another opening for Trump to fill at a critical time for the Fed.
Prince William and Kate expecting third child
Together with Prince Harry, William and Kate have taken a leading role in marking the 20th anniversary of Diana's death. It was always thought that the Duke and Duchess of Cambridge would go on to have three children.