U.S. Vice President Kamala Harris has pooled $3.2 billion in corporate pledges aimed at addressing some of the economic factors driving migration from Central America, her office said on Tuesday, lending impetus to measures to be discussed at the Summit of the Americas this week.

As a massive migrant caravan with approximately 10,000 foreign nationals on its way towards the United States, Vice President Kamala Harris on Tuesday announced a Central American youth program to get young El Salvadorans, Guatemalans and Hondurans paid community services opportunities on issues like "climate action" and violence prevention.

Harris announced the launch of the Central American Service Corps (CASC), a $50 million initiative as part of the Biden administration’s efforts to tackle what it believes are the "root causes" of the crisis at the southern border -- including poverty, climate change and violence.

CASC, according to Harris’ office, will be administered by the U.S. Agency for International Development (USAID) and will "provide young people in El Salvador, Guatemala, and Honduras with paid community service opportunities, mentorship, and a path to future employment."

Her office said that young people in those countries will be given opportunities to work on priorities in their communities that include tutoring, "climate action" and "green jobs," food security, preventing violence and other "civic-engagement" activities.

Biden's decision to cut out Washington's three main leftist antagonists in Latin America on the grounds of human rights and democratic shortcomings prompted Mexican President Andres Manuel Lopez Obrador and several other leaders to stay away, threatening to undercut Biden's summit agenda.

The corporate pledges form a major part of Biden's plan to address "root causes" of migration from Guatemala, Honduras and El Salvador, a region known as the Northern Triangle. Curbing irregular migration is a top priority for Biden at a time when record numbers of people are trying to enter the United States at the Mexican border.

Republicans, who hope to take control of the U.S. Senate and House of Representatives in the November mid-term elections, have fiercely criticized the Democratic president for reversing the restrictive immigration policies of former Republican President Donald Trump.

The latest funding commitments announced by Harris exceed $1.9 billion, adding to $1.2 billion in pledges made in December. They are intended to create jobs, expand access to the internet and bring more people into the formal banking system, officials said.