PORT-AU-PRINCE  - Haitian President Michel Martelly has left a US hospital where he was treated for a pulmonary embolism, officials said Thursday. “Upon the request of the doctors and following the significant progress in his recovery, Michel Martelly was able to leave the hospital center where he was under observation since Monday” in Miami, a statement said. The president, who did not discuss his ailment, said in a message that he felt better, and thanked the government and the Haitian people for their support. He insisted that the government remained in control in Haiti, which is still grappling with the aftermath of a massive 2010 earthquake that devastated Port-Au-Prince and killed over 200,000 people.

“During my hospital stay, I kept in contact with the authorities. Everything is under control and I will return soon,” Martelly said, without providing further details of his return date.

A pulmonary embolism is an obstruction of a blood vessel in the lungs, usually due to a blood clot blocking a coronary artery. It is a fairly common condition but can prove fatal if not diagnosed quickly and treated.

Martelly, a 51-year-old former singer known as “Sweet Micky” who took office last year, rushed back to the United States late Monday, accompanied by wife Sofia, days after surgeons operated on his right shoulder. He was also operated on his left shoulder in October in the United States.

Haitian officials initially said only that his rapid return to the United States was “due to postoperative complications,” but revealed on Tuesday that he had been diagnosed with the potentially life-threatening condition.