Democratic Bulgaria has called for an emergency hearing in parliament with the State Agency for National Security (DANS), Military Intelligence, the State Intelligence Agency, the defence minister and prime minister Rumen Radev, Yes, Bulgaria co-chair Ivaylo Mirchev said. The call comes after drones hit two merchant ships in Bulgaria's economic zone in the Black Sea. See our original report: President Yotova cancels Veliko Tarnovo visit after drone strikes on ships in Black Sea.

Mirchev wrote on Facebook that he was once again urging president Yotova to call an emergency meeting of the Consultative Council for National Security. "We insist that president Yotova urgently convene the Consultative Council for National Security," he wrote.

Mirchev said that if Yotova fails to call the council again, it will confirm she is unfit for the post she holds and is running for.

Radev held a meeting with state institution representatives this morning over the stricken ships, the government press office said.

Updated (06.10, 16:04): Foreign minister Velislava Petrova said she is in close contact with European partners and NATO over the attack on the two ships, calling it a grave breach of international law. President Iliyana Yotova has called a meeting of the Consultative Council for National Security tomorrow, October 7, at 1:00pm.

Follow-up: Parliament rejects four hearing requests, Demerdzhiev to answer questions tomorrow

Follow-up: EU agency gives Bulgaria and Romania satellite data on Black Sea

Follow-up: Bulgaria asks EU and NATO for help investigating attack on ships

Follow-up: GERB-SDS gather signatures for emergency parliament session over Black Sea strikes

Follow-up: Peev: There are debris near "Chelsea-3" that Bulgarian investigators will analyze