The second caravan with agricultural products was dispatched from Odesa Region ports on 7 August.
Three ships departed from Chornomorsk, one from Odesa, the Ukrainian Infrastructure Ministry has said on Facebook.
"The four bulkers MUSTAFA NECATI, STAR HELENA, GLORY and RIVA WIND have almost 170,000 tonnes of agricultural products on board," it said.
The Turkish Defence Ministry, a party to ensuring the operation of the grain corridor, specified that the MUSTAFA NECATI is carrying 6,000 tonnes of sunflower oil to Italy, the STAR HELENA is carrying 45,000 tonnes of sunflower seeds to China and the GLORY is carrying 66,000 tonnes of corn to Iskanderun.
On 22 June, Ukraine and Turkey signed an agreement under the auspices of the UN secretary-general to unblock the export of Ukrainian grain and grain products. A mirror agreement was signed by russia. The continuation of the russian blockade of Ukrainian exports threatened famine in Latin America, Asia and Africa.
The day after the agreement, russia hit the port of Odesa. On 2 August, the first vessel to export Ukrainian grain left the port of Odesa.
On 5 August, the first caravan set sail from Odesa ports. Three ships with 57,000 tonnes of Ukrainian corn left for Turkey, the UK and Ireland.
In Turkish ports the vessels are inspected by the Turkish side. The russians are not included in this.