The city, which forecasters say typically gets about 3 inches of rain in June, was inundated with nearly 10 inches of rain last week.

At least 11 people are dead and several others are missing after intense flash flooding covered roadways and swept away vehicles in San Antonio, Texas, triggered by heavy rainfall the area has not seen in more than a decade.

More than 6 inches of rain fell in the metro on June 12 and 13 people were killed in subsequent flash floods that overwhelmed some San Antonio roads. On Monday, City Manager Erik Walsh notified Mayor Ron Nirenberg and City Council that officials will be investigating what factors may have exacerbated the tragedy.