On Tuesday, a massive explosion rocked Beirut, Lebanon’s capital. At least 100 have died and more than 4,000 are injured. Beirut’s governor Marwan Abboud said that some 300,000 people have lost their homes. The current estimation is that damages range from $3 to $5 billion. The explosion completely flattened the harbor front and surrounding buildings. The port is the country’s lifeline: repairing or replacing it could take years.

Lebanese President Michel Aoun called for an emergency cabinet meeting on Wednesday. He said that a two-week national emergency must be declared following the massive explosion. President Aoun assembled the high Defence Council following the explosion.

The explosion caused shockwaves across the city, causing harm and wreckage as far out as the outskirts of the capital. Officers stated they believe the number of casualties will rise further as emergency responders dig in the rubble in search of survivors. Authorities are currently offering the survivors meals, water, and shelter.

The cause of the explosion was not immediately apparent. Officials linked the blast to some 2,750 tones of confiscated ammonium nitrate (NO2) that had been stored in a warehouse at the port for six years. The warehouse was just a short distance’s walk from Beirut’s shopping and nightlife districts.

According to CNN, the blast was felt as far as Cyprus, hundreds of miles away. It registered as a 3.3 magnitude earthquake in the Lebanese capital.