A massive explosion in the Lebanese capital, Beirut with the force of an earthquake, has killed at least 100 people and injured more than 4,000 injured, with bodies buried in the rubble, according to Health Minister Hassan Hamad on Tuesday.

The whole city was shaken by the blast, which struck with the force of 3.5 magnitude earthquake, according to Germany’s geosciences center GFZ, followed by a shock wave that blew out windows and exploded into a giant mushroom cloud into the sky,

It was heard and felt as far away as Cyprus more than 200 kilometers (180 miles) across the Mediterranean.

Hundreds have been reported missing in the blast raising fears that the death toll will rise.

Lebanese President Michel Aoun scheduled for an emergency cabinet meeting on Wednesday and said a two-week state of emergency should be declared following a massive explosion.

President Aoun declared a three-day mourning period and announced that the government would release 100 billion lira($66 million) of emergency funds.

Officials said that the 2,750 tonnes of ammonium nitrate had been stored unsafely in a warehouse at the port for six years.

It’s still unclear what exactly caused the explosion.

Beirut Gov. Marwan Abboud called it a “national catastrophe”.

Injured residents flooded hospitals, pushing them more than their capacity. Medical officials pleaded for blood donations.

US President Donald Trump says an explosion that killed dozens looks like an attack. ‘We will be there to help. It looks like a terrible attack,’ He said at a press briefing.