From the Tourism Authority of Thailand situation update fact sheet:

The situation in Bangkok has returned to normal. Residents and visitors to Thailand are enjoying the Songkran Thai New Year celebrations throughout the Thai kingdom, including in Bangkok.

From The Nation:

Sondhi Limthongkul is in serious condition after being shot as a bullet hit his left skull. The bullet is still in his skull, causing bleeding inside his brain, Vajira Hospital Director Dr Chaiwun Charoenchoktavee said Friday. Doctors are conducting an urgent operation on Sondhi and the operation is expected to finish around noon. … His driver, Vayupak Mussi, was also seriously wounded from the attack. Doctors said later that he survived and was now in stable condition. Meanwhile PAD’s spokesman Parnthep Pualpongpan said at least two attackers riding on a pickup blocked Sondhi’s vehicle who was on Samsen Road, heading to Manager newspaper office in Banglampoo area early Friday morning. The attackers then shot four tyres of Sondhi’s vehicle before stepping out of their car and sprayed more bullets on the car. The attack lasted about five minutes and the attackers went back to their pickup which sped away along Tevet Road. Police who rushed to the scene found Sondhi’s car riddled with bullets and they could collect more than cartridges of AK-16 and rifles from the scene. …