Police arrested a man Thursday morning who they say drove a vehicle along a sidewalk on the Capitol complex grounds, sparking concern a day after the driver of a pickup truck killed 15 people in New Orleans in a suspected terrorist attack.

This comes as the first test since the D.C. Metropolitan Police Department embraced a "heightened security posture" city-wide in light of the terrorist attacks.

Two more family members convicted in the killings of eight members of an Ohio family received lengthy prison terms on Friday for their roles in the 2016 shootings, as prosecutions near completion in what has been described as the most heinous crime in modern Ohio history.