Updated Jan. 30: Revised to include donation amount.

People have raised more than $1 million in two days on a GoFundMe page to rebuild a mosque that caught on fire early Saturday morning in the coastal Texas town of Victoria.

Investigators are still determining the cause of the fire, according to the Victoria Advocate.

More than 21,000 people have donated, and around 400 supporters prayed Sunday morning at the ruins of the Victoria Islamic Center to show solidarity, according to the Advocate.

The GoFundMe page said the "outpouring of love, kind words, hugs, helping hands and the financial contributions are examples of the true American Spirit."

Crews who responded to the Islamic Center of Victoria at 201 E. Airline Road about 2 a.m. found the building consumed in flames, the Advocate reported.

No injuries were reported in the fire, in a town about 125 miles southwest of Houston.

Firefighters extinguished the blaze by 6:30 a.m. and investigators began working, as members of the mosque started their first prayer of the day across the street from the destroyed structure, the Advocate reported.

About 100 people are members of the center.

"Many thanks to the Victoria Fire & Police Departments," a Facebook post on the center's page said. "These guys worked for hours trying to extinguish the fire. Prayers for you & your safety."

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Hours earlier, President Donald Trump signed an executive order that suspends all refugee admissions for 120 days, bars Syrian refugees indefinitely and temporarily bans entry for citizens of seven majority-Muslim countries: Iraq, Iran, Syria, Yemen, Sudan, Libya and Somalia.

The cause of the fire is under investigation, said Victoria Fire Marshal Tom Legler, who asked for help from state and federal fire investigators.

Neither Legler, nor Shahid Hashmi, president of the center, would speculate whether the fire was arson, but Hashmi said the mosque has been targeted before.

He said the building was burglarized Jan. 21, and in 2013 a man admitted painting "H8," meaning "hate," on the outside of the center, the Victoria paper reports.

Staff writer Eline de Bruijn and The Associated Press contributed to this report.