"This morning we have been carrying out searches at an address in the Withington area and a man has been arrested", a spokesperson for Greater Manchester Police (GMP) said.
The statement added that two of 11 suspects have been released without charges and nine remain in custody for questioning.
Nine suspects are now in detention on United Kingdom soil in connection with the blast, for which the Islamic State group has claimed responsibility. Over 60 people were also hospitalised, many with life-threatening injuries. "These relationships enable us to collaborate and share privileged and sensitive information that allows us to defeat terrorism and protect the public at home and overseas", GMP said this morning in a statement.
Abedi, who was born in Manchester in 1994 to Libyan parents, blew himself up on Monday night at the Manchester Arena indoor venue at the end of a concert by USA pop singer Ariana Grande attended by thousands of children and teenagers.
At a summit of North Atlantic Treaty Organisation allies in Brussels on Thursday, May confronted Trump over the issue, saying shared intelligence "should be kept secure", her spokesman said.
Mohammed Fadl, a spokesman for Libyan expatriates in Manchester, said Salman's family was well known in the community, especially his elder brother Ismail, but said Salman "was not socially involved in the community".
"From the day we started putting the Dangerous Woman Tour together", Grande wrote in her letter, "I said that this show, more than anything else, was meant to be a safe space for my fans".
HP Introduces 'GST Solution' For Traders, MSMEs
A cess can be imposed on select luxury and so-called sin goods, such as tobacco. Central Board of Excise and Customs Chairperson Vanaja N Sarna and Member S.
The UK threat level is at its highest level, meaning another attack may be imminent.
File image of police investigations during the Manchester terror attack.
French Interior Minister Gerard Collomb said Abedi had "likely" been to Syria after the trip to Libya, citing information provided by British intelligence services to their counterparts in Paris.
17 of the 22 victims of the bombing have now also been named.
The National Counter Terrorism Policing body said the breach of trust caused great "damage" and "undermines our investigations".
Rudd said up to 3,800 soldiers could be deployed on Britain's streets, taking on guard duties to free up police to focus on patrols and investigation.
A national minute's silence was to be observed at 11 am (1000 GMT) for those killed and the dozens seriously wounded. One of those killed was an eight-year-old girl.
A total of 64 people are being treated in hospital, including 20 in critical care, medical officials said.