Confrontations between security forces and protesters take place almost daily in areas populated by members of the Shiite Muslim majority, which led anti-government protests Bahrain crushed last year.
“After the funeral, many of the mourners started protesting and the police began using tear gas and sound bombs. It is still going on hours later,” a resident told Reuters from the mostly Shiite Muslim village of Sitra, south of the capital Manama.
At least one demonstrator was injured after being hit in the head by a tear gas canister, activists said in Twitter messages.
The opposition said earlier that Sayed Hashim Saeed, who died on Saturday, had been hit by a tear gas canister at close range.
But officials said the youth’s body had extensive burns which could not have been caused by a tear gas canister.
“Preliminary investigations show that the deceased was among those who took part in attacks on security forces by throwing petrol bombs,” the state news agency BNA quoted a police official as saying.
A coroner’s report said the youth had a neck wound which may have been fatal and that the cause of death would be investigated.
Shiite youths chanting slogans against Bahrain’s royal family clashed with riot police across the Gulf state on Friday and Saturday. Security forces fired tear gas at them in an attempt to keep them from blocking roads.
Inspired by Arab Spring uprisings in Tunisia and Egypt, thousands of mainly Shiite Bahrainis took to the streets in February and March demanding curbs on the power of the Sunni Muslim Al-Khalifa family and an end to perceived discrimination.
The broader pro-democracy movement was suppressed with military backing from Bahrain’s Sunni-led Gulf neighbors Saudi Arabia and the United Arab Emirates.
At least 35 people including five members of the security forces were killed in the unrest, according to an inquiry Bahrain commissioned into the protests and their aftermath. The inquiry said it found evidence of systematic abuse and torture.
Bahrain has promised to implement the inquiry’s recommendations, which the US Congress has linked to its approval of a $53 million arms sale to Manama. Opposition groups doubt the kingdom’s commitment to reform.
On Saturday, the independent daily Al Wasat said on its website that the head of the body implementing the recommendations, Ali al-Salih, had handed in his resignation. There was no official confirmation of the report.
Bahrain is important to Western interests in the Middle East because it hosts the US Fifth Fleet and faces Iran on the other side of the Gulf. Shiite Iran has denied Bahraini government accusations that it has incited the protests.