An Indian engineer was killed and two others injured when an American man opened fire on them after allegedly yelling "get out of my country", with the local police calling it as a "possible hate crime".

The Indian Embassy has swung into action and two senior officials of the Indian Consulate in Houston have been sent to Kansas to assist the victims' families.

According to Garmin, Kuchibhotla and Madasani worked in the company's aviation systems. Garmin will have grievance counsellors on-site and available for its associates today and tomorrow," Garmin said in a statement.

The accused, Adam Purinton, 51, navy veteran with an inactive pilot license and air traffic controller certificate fled the bar on foot . He was enjoying a drink at a pub in a neighbouring county hours later when he was picked up.was arrested on Thursday morning exactly five hours after the incident. The accused has been charged with premeditated first-degree murder and his bond has been set at $2 million.

"It was a tragic and senseless act of violence," Olathe Police Chief Steven Menke told reporters.

"Consul Ravindra Joshi and Vice Consul Harpal Singh rushed to Kansas to assist shooting victim. They are on their way and will reach by evening," the consulate said in a tweet.

External Affairs Ministry Spokesperson Vikas Swarup said Kuchibhotla and Madasani hailed from Hyderabad and Warangal, and were working at Garmin in Olathe. "The Indian Embassy officials will meet the injured and facilitate in bringing the mortal remains of the deceased and will be in touch with local police officials to ascertain more details of the incident and monitor follow up action. They will also meet the community members in Kansas," Swarup said.

A GoFundMe page set up for Kuchibhotla’s family by his former colleague Kavipriya Muthuramalingam raised $227,401 from more than 6,100 people in about six hours. The original goal for the page was $150,000.

Another GoFundMe page - set up for Madasani and Kuchibhotla by Brian Ford, who said he lived about 15 minutes away from the site of the shooting in Olathe - received pledges for $32,660 against a goal of $50,000.

Andhra Pradesh chief minister N Chandrababu Naidu tweeted: “Saddened to learn about the death of Srinivas Kuchibotla and injuries to Alok Madasani in Kansas”.