The attack is the latest example of the growing insecurity that has spread to nearly every corner of Africa's most populous country.
The launch of the new flight route between Lagos and Tel Aviv, while not officially confirmed as of yet, could come as early as next month.
Neta Barzilai secured Israel's fourth Eurovision victory in 2018 with her song "Toy."
Barkindo, who was 63 years old, was due to step down at the end of this month after six years as OPEC's secretary-general.
It is not uncommon for conflicting casualty figures to emerge in the aftermath of disasters in Nigeria.
Owo is located in Ondo State in southwest Nigeria, a part of the country that does not usually experience violent conflict over religion
Local media said gunmen had fired at worshippers and detonated explosives at the church. Those killed included women and children.
Two suspects were arrested in connection with the murder of Deborah Samuel, accused of posting blasphemous statements about the Prophet Mohammad.
“If you are in Israel or Ghana, you have one God, one Torah. If the people in Israel are keeping Shabbat, us Hebrews in Ghana will also keep Shabbat and pray to Hashem.”
Two officers and four other ranks from both countries were killed and 16 wounded.