Three Egyptian nationals were killed in a massive warehouse explosion that hit the Lebanese capital, Beirut, on Tuesday, the Egyptian foreign ministry and the Egyptian embassy in Lebanon said.

The foreign ministry earlier on Wednesday said two Egyptians were killed in the blast and another was missing, before the third person was confirmed dead by the Egyptian embassy later on the day.

They were identified as Ibrahim Abdel-Mohsen Abu Qasaba, Aly Ismail Shehata and Roshdy Ahmed El-Gamal.

Authorities will take all necessary measures to bring home the bodies of the Egyptian victims, the ministry said.

A large blast at the city’s port damaged buildings across the capital and sent a giant mushroom cloud into the sky, with Lebanese officials blaming a highly explosive material, ammonium nitrate, stored in a warehouse for six years.

The explosion has killed at least 100 people and injured more than 4,000, according to Lebanon's Red Cross.

An Egyptian field hospital in Beirut is providing assistance to the victims of the devastating blast, the ministry said earlier, adding that the facility started to receive a number of cases on Tuesday.

The Egyptian embassy said Egypt was sending a planeload of medical supplies to Beirut on Wednesday.

Egyptian officials have been in contact with the Lebanese side to identify their needs, it added.

Earlier on Wednesday, Egyptian President Abdel-Fattah El-Sisi promised to provide full support to Lebanon during a phone call with his Lebanese counterpart Michel Aoun.

“El-Sisi affirmed the solidarity of the government and people of Egypt with its brothers in Lebanon, and the willingness to harness all capabilities to assist and support Lebanon in its ordeal,” the Egyptian presidency said.