The lawyer for rapper T.I. said Friday that he’s working to have the Grammy winner returned to a halfway house after a transportation flap left him locked up again in a federal penitentiary.

The Federal Bureau of Prisons website Friday shows that the rapper is at the Atlanta penitentiary with a release date of Sept. 29. He had checked into a halfway house in Atlanta this week after serving months in an Arkansas prison.

The 30-year-old rapper, whose real name is Clifford Harris, made the 375-mile (600-kilometer) trip to Atlanta in a gleaming motor coach on Wednesday. The transportation arrangements appear to be the reason he’s back behind bars, his lawyer said.

“The Federal Bureau of Prisons (BOP) appears to have an issue with the circumstances surrounding TI’s transportation from Arkansas to Atlanta,” T.I.’s attorney, Steve Sadow, said Friday.

Sadow said they haven’t received formal notice from prison officials explaining what he’s accused of doing wrong.

Sadow said Friday there was never any intent to mislead or misstate T.I.’s method of transportation, and he hopes the issue can be cleared up quickly so T.I. can return to the halfway house.

“T.I. got on a private bus in the prison’s parking area in full view of BOP employees. Indeed, he was actually escorted to the bus by a prison guard,” Sadow said.

Federal Bureau of Prisons spokesman Chris Burke said Friday he couldn’t discuss why the rapper was transferred back to a prison.

T.I. had initially served about seven months at the prison in 2009 after he was arrested for trying to buy unregistered guns and silencers from undercover federal agents. He was on probation after he was released and ordered not to commit another crime or to illegally possess any controlled substances.

He was arrested again in September 2010 in Los Angeles on drug charges after authorities said he was found with four ecstasy pills. He was sentenced in October to 11 months in prison for that violation, and had been set for release at the end of September but was let go early.

T.I. was released Wednesday one month early from a federal prison in Arkansas where he was serving time for a probation violation, and he already has a new book deal and TV reality show waiting for him.

The artist, whose real name is Clifford Harris, was released Wednesday morning from the Forrest City low-security prison, said Bureau of Prisons spokesman Chris Burke. Attorney Jonathan Leonard confirmed T.I. was released but did not immediately say where his client was going.

“The storm is over & da sun back out. IT’S OUR TIME TO SHINE SHAWTY!!!!!” the rapper posted on Twitter shortly after his release. “Welcome to the beginning of our Happy Ending!!!!”

T.I. had initially served about seven months at the prison in 2009 after he was arrested for trying to buy unregistered guns and silencers from undercover federal agents. He was on probation after he was released and ordered not to commit another crime or to illegally possess any controlled substances.

He was arrested again in September 2010 in Los Angeles on drug charges after authorities said he was found with four ecstasy pills. He was sentenced in October to 11 months in prison for that violation. He had been set for release at the end of September.

It’s unclear where T.I. is going next, but it appears a flock of cameras will follow. VH1 said Wednesday that the network will film T.I.’s journey home from jail and debut the show in December. MTV aired a similar reality show on the rapper in 2009 called “T.I.’s Road to Redemption: 45 Days to Go,” which chronicled his attempts to help others avoid his mistakes.

T.I. has also finalized a book deal. A representative from HarperCollins told The Associated Press T.I. has written a book called “Power & Beauty” that’s set to be released in October. The novel, which was co-written with David Ritz, is a fictional tale about two childhood friends torn apart by dangerous dealings on the streets of Atlanta.

The arrest on weapons charges came after Harris’ best friend was killed following a post-performance party in Cincinnati in 2006. The rapper has said the bullets that killed his friend were meant for him.

When he was released from that sentence, he was required to perform 1,000 hours of community service, which he spent mostly talking with schoolchildren about the dangers of drugs, gangs and violence.