Turkey's transport minister said there were no deaths caused by the incident.

Le Mesurier was the founder and CEO of May Day Rescue, which founded and trained the White Helmets.

A police statement said the 33-year-old bus driver was detained Sunday after he jumped into the sea to try and get away from the scene.

Speaking to foreign journalists in Istanbul on Friday, Recep Tayyip Erdogan said that Turkey would "do what's necessary" concerning the letter "when the time comes."

Several questions linger a year since his killing, including the whereabouts of his body and Saudi Crown Prince Mohammed bin Salman's possible culpability.

Between new flights and a hotel, Norine Khalil said the situation set her back $2,500.

Police allowed representatives to make a short statement to the media before officers dispersed the crowd with tear gas, blocking the street. Police dogs were also at the scene.

Ekrem Imamoglu won the coveted role of Istanbul mayor with a simple slogan: "Everything will be great."

Imamoglu narrowly won a previous mayoral election on March 31, but Erdogan's Justice and Development Party challenged the vote.

The results of Istanbul's mayoral election are being scrapped and rescheduled after allegations of electoral fraud — just weeks after the opposition candidate won the contest.