Topeka ? Explosions in London didn’t cause officials to heighten security Thursday in Kansas.

But Joy Moser, spokeswoman for the Adjutant General’s Department said, “We’re going to remain vigilant.”

Blasts that ripped through three subway trains and blew the roof off of a bus in the heart of England’s capital killed at least 37 people and left more than 700 wounded. Blame fell on Islamic extremists.

Senate Intelligence Committee Chairman Pat Roberts, R-Kansas, said the attacks demonstrated that the threat of terrorism remained real.

“These attacks are consistent with tactics used by al-Qaida and other sympathetic terrorist groups,” Roberts said in a statement issued as he was traveling to Cuba to visit Guantanamo Bay.

Moser said the lack of heightened security reflected Kansas’ relative lack of mass transit. Security levels didn’t change at the Statehouse or other government buildings.

However, Megan Ingmire, a press assistant to Gov. Kathleen Sebelius, was on vacation in London, along with two former Sebelius aides, Ben Sharp, who is attending graduate school there, and Nick Hale, a Kansas University law student who is visiting.

Another former member of Sebelius’ staff, Clay Britton, had left the city. All four were reported safe by the governor’s office.