An explosion ripped through the port and surrounding areas of the coastal city of Beirut in Lebanon on Tuesday afternoon, Aug. 4.

Officials have so far confirmed a death toll of 78 people and over 4,000 injured due to the blast, reported Al-Jazeera.

Numerous videos of the massive explosion at the port have surfaced online.

Highly explosive materials kept in warehouse since 2014: Officials

According to officials, the cause of the blast could be due to highly explosive material that have been stored in a warehouse since 2014, reported BBC.

The president of Beirut, Michel Aoun, tweeted in Arabic that it was "unacceptable" that 2,750 tonnes of ammonium nitrate was stored in an unsafe manner.

With investigations underway to find the cause of the explosion, the country's Prime Minister and Supreme Defence Council said they would hold those accountable for the blast, reported BBC.

The president said the government would release emergency funds, while the country has declared a three-day mourning period.

A journalist from BBC reported "dead bodies at the scene and severe damage".

Extent of the damage seen on social media

BBC also reported that hospitals are currently overwhelmed, with many buildings destroyed by the blast.

Here's a full video of the blast, that was uploaded to YouTube:

The port was reported to be "mangled", as seen in the photos below:

Some pictures from inside Beirut's mangled port today. pic.twitter.com/ccf3drv3QX

— Timour Azhari (@timourazhari) August 4, 2020

Photos on Twitter showed an office and car damaged after the blast:

My office. My car. I was on the street between the office and the car. I.. I have no words. pic.twitter.com/bTp7in0ep5

— Hala (@HalaHasIssues) August 4, 2020

The U.S. Embassy in Beirut has warned all who can to remain indoors and wear masks due to "reports of toxic gases released in the explosion".

However, many now lack windows.

Beirut's mayor compared the damage to Hiroshima, Axios reported.

Shock waves from the blast caught on camera showed the force of the explosion ripping through windows and momentarily leaving people stunned.