Lebanese Red Cross teams trying to reach blast site
From CNN's Schams Elwazer
The Lebanese Red Cross is calling on its medics to mobilize immediately, and report to their respective centers, to help deal with the massive explosion that rocked Beirut port on Tuesday evening, it said on Twitter.
Red Cross teams are trying to reach the site of the blast, it added.
Our teams are attempting to reach the blast site! Please make room for ambulances to get through!” it tweeted.
"The apartment shook horizontally," says Beirut resident
From CNN's Tamara Qiblawi and Ben Wedeman in Beirut
A red cloud hung over Beirut in the wake of the blast, as firefighting teams rushed to the scene to try to put out the fire.
Homes up to 10 kilometers (6 miles) away were damaged, according to witnesses, and footage from local media showed wrecked cars, apparently flipped over by the force of the blast.
One Beirut resident who was several kilometers away from the site of the explosion said her windows had been shattered by the explosion. "What I felt was that it was an earthquake," Rania Masri told CNN.
The apartment shook horizontally, and all of a sudden it felt like an explosion and the windows and doors burst open. The glass just broke. So many homes were damaged or destroyed."
"Never felt anything like it," says CNN's Beirut correspondent
The huge explosion in Lebanon's capital, Beirut, blew out the windows of the CNN bureau, according to CNN's correspondent Ben Wedeman, who said he saw a cloud of red smoke drift over the city after the blast.
Wedeman said he had "never felt anything like it ... [I've] been around the block and seen pretty large explosions ... and this was bigger," he told CNN's Becky Anderson, adding that he only heard and felt one explosion.
"As far as I can tell there was just one absolutely massive explosion which caused all this damage in the Lebanese capital."
Lebanon's state-run NNA news reports that a major fire broke out in a warehouse used for storing firecrackers, near Beirut's port, and strong explosions were heard shortly afterwards.
Wedeman said the cause of the blast was "still not clear -- if it was fireworks, as some news sources are saying -- they are some damn big fireworks."
BREAKING: Large explosion rocks Beirut
A large explosion rocked the Lebanese capital Beirut on Tuesday, damaging buildings and offices around the city.
Lebanon's state-run NNA news reports that a major fire broke out in a warehouse used for storing firecrackers, near Beirut's port, and strong explosions were heard shortly afterwards.
Firefighting teams have rushed to the scene and are working to put out the fire.