Customers at an Italian restaurant left a shockingly racist message for the owner, saying they would not return because he was Mexican.

Fernando Franco said he received the note at his restaurant Di Frabo, located in one of the wealthiest neighborhoods in San Antonio on Friday.

Franco is originally from Mexico City and said it was the first time he felt unwelcome in the United States after the racist remark was signed off with 'America first'.

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Customers left a shocking message on their receipt after dining at an Italian restaurant in San Antonio, Texas on Friday. The note said that although the food and service were good, they would not be returning because the owner was Mexican

Owner Fernando Franco said it was the first time he felt unwelcome in the United States after coming from Mexico City. The racist remark was signed off with 'America first'

Video courtesy of KSAT:

The entire message reads: 'The food was tasty and the service was attentive. However, the owner is "Mexican." We will not return. "America first"'.

That concluding remark of 'America First' became popular once Donald Trump began using the phrase when he started campaigning in 2015.

Franco has been working in the United States since 2012 and said he doesn't know who left the message or how they could have known he was the owner, reported News 4.

At the time he was dining with his wife but happened to speak in Spanish to the restaurant's manager, citing this as the possible reason for the cruel note.

The receipt has been shared on social media and was met with an outpouring of support for Franco. He said he plans to frame the note as a reminder for what happened

Franco has been working in the United States since 2012 and opened up the Italian restaurant Di Frabo in 2014

The receipt has been shared on social media and met with an outpouring of support for Franco.

He said to Kens 5: 'It’s a feeling that you hear this every day in the news and you see what’s going on.

'So at the end you start feeling that it’s affecting the people.'

He now is trying to obtain citizenship and plans to frame the note as a reminder of the changing politics and attitude of people in America.

However, Franco said he would still welcome the unknown customers who left the message back into the restaurant, the San Antonio outlet reported.