Several people who heard the explosion took to social media to ask about it, as law enforcement officers and the Secret Service arrived and searched the area.
Anyone hear the Glover Park explosion just now? @PoPville— Maggie Burns (@MaggieCBurns) March 3, 2022
"U.S. Secret Service Uniformed Division officers immediately responded to reports of an explosion in the area of 34th St. and Massachusetts Ave NW," a spokesperson for the U.S. Secret Service told Fox News Digital.
"After thoroughly canvassing the area, no evidence of an explosion was found and officers cleared the scene," they continued.
There was no official word on what caused the explosion, which was also reportedly heard in Cathedral Heights, but it may have been a blown electrical transformer.
Kind of blowing my mind that we haven’t heard any news. Just reports of police walking around Tunlaw and stoddert. It was incredibly loud.— Maggie Burns (@MaggieCBurns) March 3, 2022
I heard it very loud in Cathedral Heights— Mehrnoush Pourziaiee (@MehrnoushPourzi) March 3, 2022
Possibly a transformer according to DC fire on the scanner.— Jay Johnston (@uberdog) March 3, 2022
Protesters gathered in Glover Park last Thursday, outside the Russian embassy, where they held flags and signs and called for the end of the Russian invasion of Ukraine.
One of the protesters' signs read, "Putin Burn in Hell," with another reading, "Never Again."
Protesters also carried Ukrainian flags along with American flags.
"(Russian President Vladimir) Putin is a tyrant," a protester told WTOP. "And the fact that he is being allowed to march into another sovereign country is absolutely disgusting. And it needs to be stopped."
Thousands of protesters supporting Ukraine also marched to the White House on Sunday, demanding the Biden administration do more as Russian forces attempted a siege of Ukraine’s capital city of Kyiv.
"First of all, I would like that all the civilized countries unite and cut Russia from Swift," a protester told Fox News. Secondly, "help close the sky" and thirdly, "spread the word because this is just the beginning of World War III, and we don't want this to happen."
Many U.S. cities — and other major cities around the world — have seen similar pro-Ukrainian rallies.
Fox News' Adam Sabes contributed to this report.