Country legend Merle Haggard has canceled some of his upcoming tour dates. The 78-year-old singer's publicist announced Wednesday that the remainder of his February gigs have been canceled due to health issues caused by pneumonia in both his lungs, according to the Associated Press. Haggard was scheduled to perform in the upcoming weeks in both California and Nevada.

"[Haggard] is still feeling weak from his recent struggle with double pneumonia and has decided to seek further treatment," said his publicist in a statement to Rolling Stone. "Merle is hopeful he will be back on the road later in the spring."

This news comes a day after he canceled his Feb. 2 concert in Riverside, Calif., at the last minute, according to Taste of Country. He had announced to fans, who had already arrived, via his fiddle player that the show would not be happening, even though his son Ben had already performed the opening act.

Just last month, Haggard spent 11 days in California's Eisenhower Medical Center and told Rolling Stone at the time that he was "really lucky to be alive."

In early December, he was hospitalized for the first time after coming down with the illness and canceled several of his concert dates. The rescheduled dates for those shows were supposed to begin Feb. 8.