Google has created a $4 million crisis fundraiser to help people affected by President Donald Trump's controversial immigration ban. The campaign is part of the largest crisis fund in Google's history. With donations from the company and staff going to the American Civil Liberties Union, the Immigrant Legal Resource Center, the International Rescue Committee, and the United Nations Refugee agency. Google's chief executive Sundar Pichai sent details about the fund in a memo to staff on Sunday. That was first reported by USA today. Trump executive order restricts entry to the United States by citizens of seven predominantly Muslim countries. And according to Pichai, it affects at least 187 members of Google's staff. In a statement, Pichai said quote, we're concerned about the impact of this order and any proposals that could impose restrictions on Googlers and their families, or that could create barriers to bring great talent to the US. Across the tech industry, top leaders have voiced strongly worded objections to the immigration order, making that point that Limiting immigration hurts employees and innovation. The Trump administration has said the order was done to fight potential terrorist acts. It has sparked protests at airports across the US where travelers from banned countries were being detained. At the San Francisco International Airport, Google co-founder Sergey Brin With those among protesting. Apple CEO Tim Cook said in an email to employees that the company will do what it can to help staff affected by the order. Ebay's founder called Trump's order simple bigotry and Netflix's CEO Reed Hastings called the action un-American and that it will make the country less safe. A number of other high profile tech leaders have said they are also donating to the ACLU which filed the lawsuit against the order. Trump may further anger the tech industry with another upcoming executive order. Bloomberg reports that the Trump administration is drafting an order to overhaul a work visa program that tech companies use to hire tens of thousands of employees each year from outside the US. I'm Bridget Kerry, you can keep up with the latest developments at