ROUND ROCK, Texas (AP) — Austin’s mayor is urging residents to remain vigilant, despite the death of a man suspected in this month’s string of bombings in Texas’ capital city.

Mayor Steve Adler said Wednesday on NBC’s “Today” show that: “We’re just really relieved and just incredibly thankful for this army of law enforcement that has been in our community here for the last week or so.”

Authorities say the suspect blew himself up in his vehicle overnight as a SWAT team closed in on him in a suburban Austin hotel parking lot. They haven’t released his name and say they don’t know his motives, but they described him as a 24-year-old white man.

Adler is asking residents to continue to report anything that seems suspicious or out of place.