A gang that kidnapped 17 members of a U.S.-based missionary group demanded $1 million ransom per person, although authorities were not clear whether that amount included the five children being held, a top Haitian official said Tuesday.

The official, who was not authorized to speak to the press, told The Associated Press that someone from the 400 Mawozo gang made the demand Saturday in a call to a leader of the ministry group shortly after the abduction.

A person in contact with the organization, Christian Aid Ministries, confirmed the $1 million per person demand, which was first reported by The Wall Street Journal. That person spoke on condition of anonymity due to the sensitivity of the situation.

The adults range in age from 18 to 48, the children from 8 months to 15 years, according to a statement from the organization on Tuesday. Sixteen of the abductees are Americans and one Canadian.

“This group of workers has been committed to minister throughout poverty-stricken Haiti,” the Ohio-based ministry said, adding that the missionaries worked most recently on a project to help rebuild homes lost in a magnitude-7.2 earthquake that struck on Aug. 14.

The group was returning from visiting an orphanage when it was abducted, the organization said.

Responding to the recent wave of kidnappings, workers staged a protest strike that shuttered businesses, schools and public transportation starting Monday. The work stoppage was a new blow to Haiti’s anemic economy. Unions and other groups vowed to continue the shutdown indefinitely.

In a peaceful demonstration Tuesday north of Port-au-Prince, dozens of people walked through the streets of Titanyen demanding the release of the missionaries. Some carried signs that read “Free the Americans” and “No to Kidnapping!”

“They built our schools. They pay our bills,” Zachary Celus said. “They do everything for us. So now we can’t do anything because they kidnapped them.”

Meanwhile, an ongoing fuel shortage worsened, and businesses blamed gangs for blocking roads and gas distribution terminals.

Hundreds of motorcycles zoomed through the streets of Port-au-Prince as the drivers yelled, “If there’s no fuel, we’re going to burn it all down!”

One protest took place near the prime minister’s residence, where police fired tear gas to disperse a crowd demanding fuel.

In Washington, White House press secretary Jen Psaki said Tuesday that the FBI was “part of a coordinated U.S. government effort” to free the missionaries. The American Embassy in Port-au-Prince was coordinating with local officials and the hostages’ families.

“We know these groups target U.S. citizens who they assume have the resources and finances to pay ransoms, even if that is not the case,” she added, noting that the government has urged citizens not to visit Haiti.

It is longstanding U.S. policy not to negotiate with hostage takers, and Psaki declined to discuss details of the operation.

The kidnapping was the largest of its kind reported in recent years. Haitian gangs have grown more brazen as the country tries to recover from the July 7 assassination of President Jovenel Moïse and the earthquake that killed more than 2,200 people. (Al Jazeera)