​​For the second time in two days, an inattentive driver opened the door of a parked vehicle and hit Milwaukee's new streetcar.

The Hop is scheduled to begin operating next month, but Downtown commuters have seen cars gliding along the tracks on test runs in recent weeks.

According to Milwaukee Police, officers responded to a "property damage only accident" near Jackson and Juneau at 11:40 a.m. Wednesday.

"A person who was parked opened their vehicle door and it was struck by the streetcar," Police said in an email.

No one was hurt.

The collision was the same type of accident that occurred Tuesday, according to police.

In a statement, officials for The Hop streetcar said:

"There was another incident involving The Hop today, again as the result of a parked vehicle's door opening into the lane of traffic. Nobody was injured, and the damage to both vehicles was minimal."

"Once again, the City of Milwaukee reminds the entire community to be diligent in following all of the typical rules of the road, including using caution when opening doors as bicycles, buses, cars, trucks or streetcars could be approaching from behind," a spokesperson for The Hop said.