James Mueller, 76, and Donna Mueller, 75, have died from accidents following the lightning strike in Lafayette Park close to the White Home Thursday evening, a DC Metropolitan Police spokesperson confirmed. The couple was visiting from Wisconsin.

The situation of the opposite two individuals injured on Thursday was not instantly clear.

The victims had been using out the storm below a tree, in line with a legislation enforcement supply.

A extreme thunderstorm hit the DC area round 7 p.m. ET Thursday.

CNN’s Noah Grey contributed to this report.