27 June - A man from Walsall is arrested in connection with the explosion but is later released without charge.
28 June - Explosion near a Wolverhampton mosque. Police discover traces of an explosion and debris on 18 July, the day of Lapshyn's arrest. He confesses to planting the device, leading officers to the scene.
12 July - Most powerful device explodes outside a mosque in Tipton. The nail bomb explodes at 1pm, an hour before Ramadan worshippers begin prayers at the mosque. Police say the bomber getting the wrong time probably saved lives.
18 July - Two men, aged 25 and 22, arrested in connection with the mosque attacks across the West Midlands. A search of Lapshyn's flat reveals bomb-making equipment along with incriminating literature and data on his computer.
20 July - Lapshyn, already in custody, is arrested for the murder of Mr Saleem after police uncover incriminating evidence on the computer seized from his flat.
22 July - 22-year-old man arrested in connection with the mosque attacks is released without charge. Lapshyn, 25, is charged with the 'terrorist-related' murder of Mohammed Saleem. Police also confirm a link between Mr Saleem’s murder and explosions at mosques across the West Midlands.
23 July - Pavlo appears in court charged with 'terrorist-related' murder of Mr Saleem and bomb blasts targetting mosques in the Midlands.
21 October - Pavlo Lapshyn admits murdering Mr Saleem, causing an explosion near a Tipton mosque and engaging in conduct in preparation of terrorist acts between April 24 and July 18 this year. This included planting bombs near mosques in Walsall and Wolverhampton, researching locations to plant bombs and buying chemicals on the internet to make explosives.