Myanmar's new president has been sworn in, the first elected civilian leader in more than 50 years.

Htin Kyaw from the National League for Democracy (NLD) takes over from Thein Sein, who introduced wide-ranging reforms during his five years in power.

Although NLD leader Aung San Suu Kyi is barred from the presidency, she has said she will rule by proxy.

The handover completes the transition that began after the NLD won a landslide win in elections in November.

Htin Kyaw, 69, said he would be "faithful to the people" of Myanmar, as he took the oath of office in a joint session of parliament in the capital Nay Pyi Taw, according to AFP news agency.

Vice-presidents Henry Van Thio and Myint Swe, who lost to Htin Kyaw in the presidential vote earlier this month, were also sworn in, as were new cabinet ministers.

Most of the ministers belong to the NLD. The list includes Ms Suu Kyi who will be in charge of foreign affairs, the president's office, education, energy and electric power.

But the military is appointing its own nominees for three key ministries - defence, home affairs and border affairs.

Who is Htin Kyaw?

• Htin Kyaw, 69, is Ms Suu Kyi's close aide.
• He attended university in the UK. He has a reputation for honesty and loyalty, and has kept a low profile.
• His father, the writer and poet Min Thu Wun, won a seat for the party at the 1990 election.
• His wife, Su Su Lwin, is the daughter of an NLD founder, as well as being a sitting MP, and a prominent party member.
• He has played a senior role at the Daw Khin Kyi Foundation, the charity founded in honour of Suu Kyi's late mother, and has been frequently seen at the NLD leader's side, serving as her driver from time to time.

As party leader, Ms Suu Kyi has said she will act "above the president".

Despite her popularity and prominence, she was barred from becoming president under the military-backed constitution because her two sons are British.

The constitution does not allow anyone whose family members have another nationality from being president.

Last year, the NLD won 80% of contested seats in a historic election that was considered mostly free and fair and now dominates parliament.

However, the military will still play a significant role going forward.

Besides retaining control of key security ministries, it is also guaranteed to have 25% of parliamentary seats - thus retaining the power to veto any changes to the constitution, as that would require more than 75% of votes.

Outgoing President Thein Sein, who led a quasi-civilian government from 2011 ending decades of military rule, will hand over power to Htin Kyaw, who assumes office on 1 April.

Thein Sein is credited with starting the reform process in Myanmar, also known as Burma.

Jonah Fisher, BBC News, Nay Pyi Taw - "Myanmar's reform process has been a bumpy, uneven ride"

Five years ago Myanmar was an international pariah, rusting in the sidings. Sanctions were in place, and people were scared to speak their minds. More than 2,000 political prisoners languished in jail.

Now, as Thein Sein hands over the controls to Aung San Suu Kyi and her NLD, Myanmar is a country on the up.

Where once people were jailed for criticising the junta, there is now a vibrant media and open public debate. The economy's growing rapidly and a telecoms revolution is under way.

With a few exceptions, notably the Rohingya minority, life for Burmese people has got better, and much of the credit for that must go to the stewardship of Thein Sein.