Collin Morikawa has pledged $1,000 per birdie he makes in the FedEx Cup playoffs to aid recovery on Maui, where wildfires killed at least 53 people and active recovery missions continued Thursday.

Most of the village of Lahaina was destroyed, and surrounding communities were devastated. President Joe Biden declared a national emergency.

"Maui has always held a special place in my heart -- my grandfather owned a restaurant called The Morikawa Restaurant, on Front Street in Lahaina," Morikawa said in an Instagram post. "The people of Hawaii are going to need all the support that we can give them. During the course of the playoffs, I'm going to donate $1,000 for every birdie that I make."

The playoffs began Thursday in Memphis with the FedEx St. Jude Championship. Morikawa finished the first round with six birdies as he shot a 5-under 65 and was T3, two shots back of leader Jordan Spieth, at the conclusion of play.

The playoffs continue for a total of 12 rounds through the Tour Championship at East Lake Country Club in Atlanta, with the top 50 in the FedEx Cup standings qualifying for the BMW Championship next week and then the top 30 making the finale.

Morikawa, 26, said he hasn't identified how exactly his donation will be directed, whether to an organization, a town or a group of residents.

"The recency of these events means we haven't identified the best place for the funds to go yet but as the situation evolves, I'll share the beneficiary to highlight the recovery work they'll be doing and how you can also support," Morikawa wrote.

The PGA Tour plays multiple events in Hawai'i, including a high-purse signature event on Maui, the Sentry. The tournament is held at the Plantation Course at Kapalua, where Morikawa finished in a tie for second earlier this year. In four starts there, he has never finished worse than T7.

Morikawa said he still has a significant amount of family on the Big Island. His family emigrated to Maui from Japan, and his paternal grandparents were born and raised in Maui. They have since moved to California.

Reuters contributed to this report.