About 800 people were on board which capsized last week off the Greek coast, according to with preliminary police investigation in Pakistanwhich declared the Today is a day of national mourning.

Pakistani authorities announced that have arrested 14 suspects in connection with alleged migrant smuggling and police said they are looking for other suspects.

Announcement from the Prime Minister’s Office Shehbaz Sharif reported that the Pakistani government ordered the conducting a high-level investigation into the human trafficking network believed to be involved.

The flags were half-mast in all public buildings today in Pakistan, as many nationals of the country were among those who drowned in the wreck.

The police report said that one of the arrested confessed to sending three men on the boat, which had a capacity of 300-350 people, and had charged each up to three million Pakistani rupees ($10,452.96).

The estimate that 800 people were on board comes from the preliminary investigations, police officer Riyaz Mughal said.

“We have learned from two survivors, the arrested suspects and the bereaved families that the vessel was carrying around 750 to 800 peopleMughal told Reuters.

According to testimonies, the number of passengers was between 400 and 750 and the Greek authorities have announced that 104 people were recovered alive and 78 people dead.

One of the suspects arrested in Pakistan said his son was on board the boat and is missing, the police report said.

The report further states that the main suspect behind a trafficking network spanning Libya, Pakistan and Greece is based in Libya.

Mughal noted that at least 21 of those who died last week were from Kotli district in the part of the Himalayan region of Kashmir administered by Pakistan, from which people have been fleeing for Europe for many years.

Senior District Police Officer Tahir Mahmood, based in Muzaffarabad, the capital of Kashmir, said that police are looking for other suspects besides those who have been arrested. He did not specify how many.